Physics

Meredith Betterton awarded Sloan Matter-to-Life grant

Rachel Sauer — Wed, 05 Aug 2026 20:55:21 +0000

Meredith Betterton awarded Sloan Matter-to-Life grant Rachel Sauer Wed, 08/05/2026 - 14:55

Rachel Sauer

Research aligns with foundation goal to sharpen ‘scientific understanding of the physical principles and mechanisms that distinguish living systems from inanimate matter’

Meredith Betterton, a �鶹��Ѱ�� professor of physics and molecular, cellular and developmental biology, has been awarded a grant from the Alfred P. Sloan Foundation Matter-to-Life program.

The two-year, $594,487 grant will support Betterton’s ongoing research on microtubules, the small, long tubes inside cells that serve several functions and that Betterton’s research suggests may be less fixed and static than previously thought.

The Sloan Matter-to-Life program aims “to sharpen our scientific understanding of the physical principles and mechanisms that distinguish living systems from inanimate matter, and to explore the conditions under which physical principles and mechanisms guide the complexification of matter towards life.”

�鶹��Ѱ��Boulder scientist Meredith Betterton has been awarded a two-year, $594,487 grant from the Alfred P. Sloan Foundation Matter-to-Life program.

Betterton and her research colleagues study microtubules in cells, which help maintain cell structure similar to how beams support a building and also act like highways that move traffic along, she explains.

“Because (microtubules) have this important role as highways that things stick to and then move along, people have thought about them as being kind of fixed,” she says. “You build a microtubule, it’s there to be a highway and then it’s pretty static.

“The thought has been that once they’re there (in the cell), they sit there. Our project has to do with the idea that there might be subtle changes within the (microtubule) structure that act as a signal that sends information—so they act in some ways not as a highway, but like a telephone wire that’s sending signals.”

Building with bricks

Microtubules are built of subunits, called tubulin, that can be compared to bricks, Betterton explains. These tubulin “bricks” are known to make small internal changes to their shape and size; what hasn’t been known is what happens to the rest of the tubulin in the microtubule if one changes. “Imagine packing a lot of bricks together in a wall,” she says. “If you change the shape of one, what happens to the others nearby?”

Several years ago, Betterton and her research group, in collaboration with another team of research colleagues including Radhika Subramanian and Sithara S. Wijeratne at Harvard Medical School, were studying “traffic” along microtubules, which is done by motor proteins. These proteins take “steps” along the microtubule. They also can pile up and cause traffic jams, so Betterton and her colleagues were studying those jams to better understand the motors.

The researchers discovered this phenomenon because the math wasn’t working. “In my group we were working on mathematical modeling of this, and we couldn’t get the model to work,” she says. “We put in measurements, and the equations gave us predictions that were really different from what experiments showed. We found the only way we could get the model to make sense was if something was happening where the motors could talk to each other over really long distances.”

While this action happens on a nanometer scale, “if you scaled it up it would be as if, when you’re driving a car, you could know there’s another car two miles away and how fast it’s driving,” she says. “That really was the initial discovery—this weird, long-range effect that we didn’t know where it was coming from.”

Other research had explored the conformational transitions, or structural shifts in tubulin, and how motor proteins can stick to microtubules and change their state if they bind in large numbers. Betterton and her research group are exploring whether a change of state can happen when motor proteins bind in small numbers and send signals over long distances.

How cells process information

A key aspect of this research, Betterton says, is it explores a different paradigm for how to think about these particular molecules in cells and aims for broader understanding of the way cells process information.

For example, she says, much is known about how neurons in the brain send electrical signals—a vital process for information transmission in the brain—but that process “can only happen in that one type of cell, whereas microtubules are in every cell,” Betterton says. “They could be sensing something happening in one part of the cell, so we’re studying this new way that cells could be responding.”

She adds that there are various potential applications for this avenue of research, including developing more targeted chemotherapy drugs: “There’s one (tubulin) that seems to be resistant to this subtle expansion and contraction. Recent work shows that makes them not as responsive to chemotherapy drugs. Because microtubules are involved in cell division, some first-line chemotherapy drugs for cancer act against microtubules.

“What has been discovered is that some cancers can resist these chemotherapy drugs by switching to this other type of tubulin that doesn’t change shape as well,” she says, adding that understanding more about tubulin expansion and contraction could possibly lead to more effective drugs.

There also could be potential applications in the physics of materials and using microtubules and motor proteins to make new types of materials that are more tunable to specific functions.

“The Sloan program is interested in this research because this specific program is called Matter-to-Life,” Betterton says. “What that’s trying to say of matter is that it’s some collections of molecules, but what about it becomes different between something that’s inert versus something that could be more alive? That’s a really exciting question.”

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Research aligns with foundation goal to sharpen ‘scientific understanding of the physical principles and mechanisms that distinguish living systems from inanimate matter.'

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Top image: Alfred P. Sloan Foundation

National honor recognizes physics teaching excellence

juch8046 — Mon, 03 Aug 2026 14:31:53 +0000

National honor recognizes physics teaching excellence juch8046 Mon, 08/03/2026 - 08:31

Carl Wieman, Katherine Eggert (interim dean, �鶹��Ѱ��Boulder College of Arts and Sciences), Tobin Munsat, Noah Finkelstein and Erika Randall (dean and vice provost of undergraduate education, �鶹��Ѱ��Boulder) celebrate the recognition on Monday, August 3, for �鶹��Ѱ��Boulder's Department of Physics. Photo: John Eisele

�鶹��Ѱ��Boulder Department of Physics named inaugural recipient of the Carl E. Wieman Award for Excellence for sustained commitment to high-quality undergraduate education

The �鶹��Ѱ�� Department of Physics has received national recognition as an inaugural recipient of the Carl E. Wieman Award for Excellence, a new honor presented by the Association for Undergraduate Education at Research Universities (UERU).

The award recognizes research university departments and offices that demonstrate a sustained commitment to teaching excellence and high-quality undergraduate education. UERU also recognized the Office of the Senior Vice Provost for Academic Programs, Student Success, and Effectiveness at the University of Illinois Chicago with a Wieman award.

Carl E. Wieman, one of the �鶹��Ѱ��Department of Physics' most distinguished faculty members, received the 2001 Nobel Prize in Physics while a faculty member, sharing the prize with �鶹��Ѱ��Boulder physics professor and JILA fellow Eric Cornell. Photo: John Eisele

For the Department of Physics, the recognition reflects the department’s longstanding commitment to scientific discovery, physics education research and student success. It also carries special significance because the award is named for Carl E. Wieman, one of the department’s most distinguished faculty members.

Wieman received the 2001 Nobel Prize in Physics while a faculty member at �鶹��Ѱ��Boulder, sharing the prize with �鶹��Ѱ��Boulder physics professor and JILA fellow Eric Cornell. Their groundbreaking work achieved the world’s first Bose-Einstein condensate. Wieman and Cornell’s scientific accomplishments helped elevate �鶹��Ѱ��Boulder’s international reputation in physics.

Wieman’s impact extends well beyond the laboratory. Following his Nobel Prize-winning research, he launched the PhET initiative focused on improving science education and went on to become an internationally recognized scholar of teaching and learning. He later returned to �鶹��Ѱ��Boulder as a science education advisor and collaborator, helping advance efforts to improve teaching effectiveness and student learning across STEM disciplines.

Today, his influence continues through research, mentorship and scholarship, including his recent book, How to Learn to Think Like a Skilled Engineer or Scientist and How to Teach It.

That legacy is reflected in the work now being recognized. According to UERU, the Department of Physics was selected for its leadership in rethinking teaching evaluation. Drawing on the department's internationally recognized contributions to physics education research, faculty leaders developed approaches that use multiple measures to evaluate instructional excellence and support effective teaching. Led by Vice Chair Noah Finkelstein and other faculty partners, the effort helped shape teaching evaluation reforms across multiple colleges at �鶹��Ѱ��Boulder.

“Our department is remarkable in its impact and commitment to excellence in all its activities including education, research and service,” Finkelstein said. “This community continues to innovate and keep our students at the center of what we do. We are so grateful for this recognition from UREU - a national leader in advancing our collective capacities in undergraduate education.”

The department’s success has been strengthened through participation in national initiatives focused on undergraduate STEM education, including the AAU STEM Education Initiative, APLU’s Network of STEM Education Centers, the former Bay View Alliance and UERU’s Raising the Bar Initiative, and the Transforming Higher Education–Multidimensional Evaluation of Teaching project, which culminated in the 2026 Harvard Education Press book, Transforming College Teaching Evaluation: A Framework for Advancing Instructional Excellence.

“This award is enormously meaningful for our department, especially because it bears Carl Wieman’s name,” said Tobin Munsat, chair of the Department of Physics. “Carl showed us that groundbreaking research and a deep commitment to teaching can, and should, go hand in hand. This recognition affirms our commitment to giving students the best education we can.”

Steven P. Dandaneau, UERU Executive Director and Associate Provost at Colorado State University, noted that both universities receiving the inaugural Carl E. Wieman Award for Excellence “demonstrate that excellence in undergraduate education is not the product of isolated innovators, but of intentional systems, leadership and accountability.”

The recognition underscores the department’s role as a national leader in the ongoing effort to improve undergraduate education at research universities. "This award emphasizes accountability, an often-overlooked component of educational excellence," said Wieman. "By recognizing departments that have built systems to support and assess excellence in teaching and learning, this award shines a light on models worthy of attention and emulation."

In many ways, the recognition comes full circle. An award named for a Nobel laureate whose career helped redefine both modern physics and science education now honors the department where much of that work began. For the department, which earned the No. 4 spot among public universities in the latest U.S. News & World Report graduate program rankings, the award reflects the department's longstanding commitment to research excellence, outstanding teaching and the education of future physicists.

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�鶹��Ѱ��Boulder Department of Physics named inaugural recipient of the Carl E. Wieman Award for Excellence for sustained commitment to high-quality undergraduate education.

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Photo by Nikita Palenov / Unsplash

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Top photo: Nikita Palenov / Unsplash

Jun Ye elected to the American Academy of Arts and Sciences

Rachel Sauer — Thu, 23 Apr 2026 18:14:01 +0000

Jun Ye elected to the American Academy of Arts and Sciences Rachel Sauer Thu, 04/23/2026 - 12:14

Election recognizes Ye's extraordinary contributions to physics and quantum science, including pioneering advances in optical atomic clocks, precision measurement and quantum many-body physics

�鶹��Ѱ�� scientist Jun Ye has been named a member of the American Academy of Arts and Sciences.

Ye is a professor of physics at �鶹��Ѱ��Boulder and physicist at the National Institute of Standards and Technology (NIST). He holds the Monroe Endowed Professorship in Physics and is a fellow at JILA.

Learn more about Ye's honor

Election recognizes Ye's extraordinary contributions to physics and quantum science, including pioneering advances in optical atomic clocks, precision measurement and quantum many-body physics.

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Colorado AG advises Quantum Scholars to be curious in changing times

Rachel Sauer — Wed, 22 Apr 2026 19:31:40 +0000

Colorado AG advises Quantum Scholars to be curious in changing times Rachel Sauer Wed, 04/22/2026 - 13:31

Rachel Sauer

Attorney General Phil Weiser spoke to Quantum Scholars Tuesday, emphasizing the need for critical thinking in a time when ‘our capacity to govern ourselves is now being undermined by the technologies that we need to govern’

In a roomful of Quantum Scholars, Colorado Attorney General Phil Weiser began his remarks in the 1860s.

As the students in the room are now, people living then passed through a time of world-changing technological advancement. Then, it was the railroad and telegraph, which fundamentally altered people’s conception of distance, Weiser said.

Today, “we're too close to it to have a full grasp of the changes that are happening in our society, in our economy, but they are profound,” he said. “We're coming off of this transformation of the internet that all of you have grown up with, swimming in the water, whereas Noah (Finkelstein) and I lived in a pre-internet world.

Colorado Attorney General Phil Weiser speaks to Quantum Scholars Tuesday afternoon.

“We know how this world is different, but none of us fully knows how quantum and AI and other emerging technologies will pose yet another transformation. And one of the challenges of this moment that's a little different than even 1860 is our capacity to govern ourselves is now being undermined by the technologies that we need to govern.”

Weiser’s remarks came during a guest lecture Tuesday afternoon to members of Quantum Scholars, a program conceived in the �鶹��Ѱ�� Department of Physics and the College of Engineering and Applied Science (CEAS) that offers undergraduate students opportunities to learn about the quantum field, including connections with local industry leaders and introduction to new quantum technology.

The Quantum Scholars program includes undergraduates studying physics, mathematics, engineering and computer science and aims to advance quantum education and workforce development through professional development, co-curricular activities and industrial engagement.

Finkelstein, a distinguished professor of physics who co-directs Quantum Scholars with Professor of Distinction Michael Ritzwoller, noted in his introduction of Weiser that while researchers and innovators in the quantum field have studied its past and keenly look toward the future, “we haven't had folks on policy yet. It turns out that's going to be the third leg of advancing quantum sciences and sciences in general.”

‘How do I know this is true?’

Weiser, who is dean emeritus of the �鶹��Ѱ��Boulder Law School and an adjunct faculty member, noted that “one of the embarrassments of this moment is how deeply dysfunctional and non-responsive national public policy-making institutions are. When you think about social media, when you think about AI, when you think about quantum, there are all sorts of opportunities, there are all sorts of challenges, and we don't have the institutions to meet them.”

He gave as an example Anthropic’s Mythos AI model, which can both detect and exploit software vulnerabilities, and which the company hasn’t released because of threats it could pose to global cybersecurity.

“There are a couple of possible scenarios there,” Weiser said. “One is that they're really good at marketing, and they want to make sure that every single bank and other institution uses the product first to protect it from the product. Could be.

“Or, they're actually trying to be socially responsible, knowing that there's no national governing framework or body that can help manage cybersecurity harms.”

When Weiser worked in the Obama White House in 2009-2010, he and his colleagues were beginning to talk about the challenges of cybersecurity, and how the challenges of technology governance are quite different than the challenges of rural agriculture governance or urban industrialization governance “because technology of the age we're now living in moves so fast,” he said.

Distinguished Professor Noah Finkelstein (right) greets Colorado Attorney General Phil Weiser (left) before Weiser's talk to Quantum Scholars Tuesday afternoon.

“And sadly, we have a government that's unable to come to terms with this, raising the question, ‘How are we going to govern ourselves in this age?’ You've heard lots of people say things like AI can be as dangerous as nuclear weapons, and we came up with international governing institutions to deal with the threat of nuclear weapons. We may well need some to deal with the challenges and threats of AI. Are we up to that challenge right now?”

In that vein, Saksham Hassanandani, a first-year student majoring in mathematics, asked what he can do to “help and advocate for such changes? And especially if I end up in an industry . . . that may not care for the ethics. What can we do as people to fight for this change?”

Weiser mentioned that he and his team are currently suing Meta for the design of social media—"they designed a product in a way that they knew was harming people,” he said—but nevertheless encouraged Hassanandani and his fellow Quantum Scholars not to “take as a steady state that the company you're going to work for is acting in a way that's unethical. I would start with an aspiration that you're going to be working for a company who cares about its customers, who treats its workers fairly and who thinks about society.”

Should that not be the case, Weiser advised them to be clear on their own ethical boundaries and whether they are willing to advocate internally for change and “ethical capitalism.”

Related to concerns about technology ethics, Grace Kallberg, a third-year student majoring in aerospace engineering, mentioned the growing threat of AI generating misinformation. She asked, “Is there anything that we can do as individuals to kind of help combat that?”

“Everyone here has an extraordinary opportunity as a citizen to think long and hard, and to help others think long and hard, on the following question: How do I know this is true?” Weiser replied. “You are swimming in information that is shared or, as you put it, AI generated in ways that we may not know whether it's true or not. And that is a fundamentally different position than the world that I grew up in. I grew up in a world that had editors who reviewed information before I got to it. You're not in that world.

“And so, what you can all do is wrestle with the challenge that you and others have: How do I know this is true? And then make that discipline part of your habits of mind.”

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All photos by Patrick Campbell/�鶹��Ѱ��Boulder

Project harnesses next-generation satellites to preserve Arctic sea ice

Rachel Sauer — Tue, 17 Mar 2026 22:11:24 +0000

Project harnesses next-generation satellites to preserve Arctic sea ice Rachel Sauer Tue, 03/17/2026 - 16:11

�鶹��Ѱ��Boulder researcher Ivy Tan leads a project recently funded by Ocean Visions that aims to assess whether mixed-phase cloud thinning is a viable method for cooling the Arctic

Ivy Tan, a �鶹��Ѱ�� assistant professor of physics, recently was awarded funding from Ocean Visions for a project she leads that is assessing whether mixed-phase cloud thinning is a viable method for cooling the Arctic and restoring sea ice.

Tan’s project is one of six funded by Ocean Visions, a nonprofit ocean conservation organization pursuing solutions to counter and reverse climate impacts on ocean health. The selected projects are being funded through Ocean Visions’ Arctic Sea Ice Restoration Research Fund, which was created to identify, prioritize and support research on cutting-edge ideas to slow the loss of Arctic sea ice.

“Arctic summer sea ice is a critical foundation of the global ocean and climate system, and its rapid loss is creating a series of severe risks to nature and people across the planet,” says Brad Ack, Ocean Visions CEO. “These research projects, and others to come, are intended to help answer the glaring question: Is there anything else we can do to forestall these potentially irreversible outcomes?”

“This support from Ocean Visions will allow us to better understand the radiative influence of Arctic clouds on the rapidly warming Arctic by spectrally fingerprinting the far infrared radiative signature of clouds using state-of-the-art technology,” Tan says.

Tan and her research colleagues—Sebastian Schmidt, a �鶹��Ѱ��Boulder professor of atmospheric and oceanic sciences, Michael Diamond at Florida State University and Colten Peterson with the NASA Goddard Space Flight Center—are developing a new, satellite-based Arctic cloud observation product using recently launched satellites with unprecedented routine measurements of far-infrared radiation (NASA’s PREFIRE CubeSats), as well as collocated radar, LiDAR and imager instruments.

“We will compare the satellite observations to those made with ESA/JAXA’s recently launched EarthCARE satellite and an aircraft (as part of NASA’s ARCSIX campaign),” Tan and her colleagues explain. “These comparisons will be used to produce and validate an algorithm that provides information on cloud properties and their radiative effects on the Arctic surface on a broad spatial scale. Our framework will uniquely take into account the influence of the vertical thermal stratification of the Arctic atmosphere helping us to determine where and when mixed-phase cloud seeding would, or would not, have potential as a climate intervention strategy.”

Among their aims is to help make mixed-phase cloud thinning a more viable method for cooling the Arctic and restoring sea ice. For this to happen, however, “there would need to be enough of the right type of cloud present to be thinned by seeding (clouds containing supercooled liquid water), at the right time (polar night), to produce the desired climate forcing (cooling). Unfortunately, accurately measuring these clouds, especially at night, is very challenging with current satellite products,” the researchers explain.

Ocean Visions selected the six projects through a competitive process, including review by an independent international expert panel. The research to be conducted will provide the foundation for future work, if warranted, to further advance knowledge and address ecological, social and ethical dimensions, as well as develop guidance on safeguards or stage gates for future research, according to Ocean Visions.

“The research supported through the Arctic Sea Ice Restoration Research Fund prioritizes scientific merit, interdisciplinary approaches, and careful risk assessment through a rigorous review,” says Dr. Ginny Selz, Ocean Visions senior program director. “We are excited to watch this research progress and see how it expands our understanding of potential approaches to protect and restore Arctic sea ice.”

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�鶹��Ѱ��Boulder researcher Ivy Tan leads a project recently funded by Ocean Visions that aims to assess whether mixed-phase cloud thinning is a viable method for cooling the Arctic.

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John Cumalat named Big 12 Faculty of the Year Award winner

Rachel Sauer — Tue, 10 Feb 2026 16:00:37 +0000

John Cumalat named Big 12 Faculty of the Year Award winner Rachel Sauer Tue, 02/10/2026 - 09:00

He and fellow honorees represent ‘what makes college campuses thrive as places of learning and growth’

John Cumalat, a �鶹��Ѱ�� Professor of Distinction in the Department of Physics, has been named a 2026 Big 12 Faculty of the Year Award winner.

The award celebrates a top faculty member from each Big 12 school, recognizing their excellence in innovation and research. The 16 honorees “represent what makes college campuses thrive as places of learning and growth,” according to Big 12 officials.

Professor of Distinction John Cumalat has been named a 2026 Big 12 Faculty of the Year Award winner.

"We are constantly looking for ways to highlight how Big 12 faculty continue to educate and inspire the next generation of leaders," said Big 12 Chief Impact Officer Jenn Hunter. "From the arts and filmmaking to business and engineering, this year's cohort showcases the vast opportunities available to students pursuing an education on Big 12 campuses."

The Big 12 Faculty of the Year Award is also an opportunity to showcase the diversity of research breakthroughs and educational opportunities afforded to students attending Big 12 institutions and helps attract future students, according to Big 12 officials. Faculty of the Year Award winners were nominated by their institutions in conjunction with Big 12 faculty athletics representatives, provosts and other university leaders.

“I am fortunate and humbled to be recognized with the Big 12 Faculty of the Year Award from the University of Colorado, as I am well aware there are so many talented peers in my department, my college and across the campus,” Cumalat says. “My selection is a great honor for my Department of Physics and my colleagues in high-energy physics.”

Cumalat, who last year was recognized with the �鶹��Ѱ��Boulder Hazel Barnes Prize, is best known for his research in particle physics and for developing state-of-the-art particle-detector technology and instrumentation.

After earning his PhD in physics from the University of California Santa Barbara in 1977 and completing postdoctoral work as the first Robert Rathbun Wilson Fellow at Fermilab in Batavia, Illinois, Cumalat joined the �鶹��Ѱ��Boulder physics faculty in 1981. He has been recognized with multiple honors at CU, including the Best Should Teach Award in 2003, the Robert L. Stearns Award in 2010 and the BFA Excellence in Service Award in 2013. He became a College of Arts and Sciences Professor of Distinction in 2014.

Cumalat is a member of multiple professional organizations, as well as the Compact Muon Solenoid experiment at the Large Hadron Collider at CERN, the current principal investigator of the �鶹��Ѱ��High Energy Physics Department of Energy Grant and the principal investigator of the Professional Research Experience Program with the National Institute of Standards and Technology.

Cumalat has authored or co-authored more than 1,500 publications and has been cited more than 200,000 times, according to INSPIRE, an online hub that collects scholarly work in the field of high-energy physics. He has also served on several dozen graduate-student committees and on approximately 150 undergraduate-student thesis committees.

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He and fellow honorees represent ‘what makes college campuses thrive as places of learning and growth.’

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Space physicist Mihály Horányi honored as 2025 professor of distinction

Rachel Sauer — Fri, 24 Oct 2025 19:47:36 +0000

Space physicist Mihály Horányi honored as 2025 professor of distinction Rachel Sauer Fri, 10/24/2025 - 13:47

College of Arts and Sciences leadership and peers recognize the physics professor’s service, teaching and research with the award

Mihály Horányi, a �鶹��Ѱ�� professor of physics, has been named the 2025 College Professor of Distinction by the College of Arts and Sciences in recognition of his exceptional service, teaching and research.

Mihály Horányi, a �鶹��Ѱ��Boulder professor of physics, has been named the 2025 College Professor of Distinction by the College of Arts and Sciences.

The college presents this prestigious award annually to current faculty members who are scholars and artists of national and international renown and who are recognized by their college peers as teachers and colleagues of exceptional talent.

“I’m truly surprised and honored by this recognition from my peers,” Horányi says. “LASP and the Physics Department at �鶹��Ѱ��Boulder are extraordinary communities of talented and passionate people who continually push the boundaries of scientific discovery and space exploration. I feel incredibly fortunate to have had the opportunity to collaborate with so many inspiring colleagues over the past 30 years.”

Horányi is a physicist who conducts theoretical and experimental investigations of space and laboratory complex (dusty) plasmas. He also studies electrodynamic processes and their role in the origin and evolution of the solar system, comets, planetary rings, and plasma surface interactions; dust charging, in situ and remote observations of dust; and dusty plasma laboratory experiments and space hardware development.

He received an M.S. degree in nuclear physics and a PhD in space physics at the Lorand Eotvos University in Budapest, Hungary. While a graduate student, Horányi worked on the Vega mission to comet Halley. At that time, the Russian probes Vega 1 and Vega 2, as well as the European Space Agency Giotto and Japanese missions, were happening, and “the large international interest and the excitement of building instruments that would fly in deep space was mesmerizing to me,” he recalled in an interview with NASA. “For me, figuring out the most important science questions to ask, which measurements to make, and what is the right balance between capability, reliability, mass, power needs, schedule, and cost remains challenging and exciting ever since.”

Horányi joined the Laboratory for Atmospheric and Space Physics (LASP) in 1992 and the �鶹��Ѱ��Boulder Department of Physics in 1999. He served as a co-investigator for the dust instruments onboard the Ulysses, Galileo, and Cassini missions and as a principal investigator for the dust instruments built by LASP: the Student Dust Counter (SDC) onboard New Horizons, the Cosmic Dust Experiment (CDE) onboard the AIM satellite, and the Lunar Dust Experiment (LDEX) onboard the LADEE mission. He is the principal investigator for the Interstellar Dust Experiment (IDEX) onboard the recently launched IMAP mission.

He is the author or coauthor of more than 300 refereed publications and is a fellow of both the American Physical Society and the American Geophysical Union. The International Astronomical Union renamed Asteroid 1998 AX9 as 164701 Horányi in his honor.

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College of Arts and Sciences leadership and peers recognize the physics professor’s service, teaching and research with the award.

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2025 Nobel Laureate in physics once served as mentor to grad students at �鶹��Ѱ��Boulder

Kylie Clarke — Thu, 09 Oct 2025 18:46:26 +0000

2025 Nobel Laureate in physics once served as mentor to grad students at �鶹��Ѱ��Boulder Kylie Clarke Thu, 10/09/2025 - 12:46

Kirsten Apodaca

Like many rockstar scientists, 2025 physics Nobel Laureate John Martinis spent time in Boulder’s rich scientific ecosystem mentoring graduate students and inspiring others in quantum computing.

In the 1990s, while working as a scientist at the National Institute of Standards and Technology (NIST) in Boulder, Martinis also held the position of a physics lecturer at �鶹��Ѱ��Boulder. His university affiliation focused on research collaborations and mentoring graduate students as a research advisor in the Department of Physics.

“It was important to us to build partnerships with NIST scientists, to foster more research collaborations and opportunities for our students,” said John Cumalat, professor of physics and chair of the department at the time of Martinis’ appointment. “John was instrumental in recruiting graduate students to �鶹��Ѱ��Boulder.”

It was important to us to build partnerships with NIST scientists, to foster more research collaborations and opportunities for our students. John [Martinis] was instrumental in recruiting graduate students to �鶹��Ѱ��Boulder.

The Department of Physics history book lists Martinis as a lecturer from 1993 to 1999. He supervised several PhD students, some in partnership with John Price, emeritus professor of physics.

Price fondly recalls his research collaborations with Martinis. When Price was a new faculty member starting out in a related field, Martinis shared his circuit design and building expertise, helped make samples, and provided general guidance and wisdom.

“He was generously helpful with people who had aligned interests and wanted to see everyone do interesting science,” said Price.

While at NIST-Boulder, Martinis worked on fundamental physics and technologies that were critical to the development of quantum devices now used in NIST electronic current and voltage standards.

"John enriched the scientific community not only in quantum computing related electronics, but also in several areas related to low-temperature microelectronics,” said Price.

Much of Martinis’ work at NIST has continued under the leadership of Ray Simmonds (also a physics lecturer) and other group leaders, with physics graduate students continuing to conduct their doctoral research at NIST.

“This is the rich opportunity that our students receive –– it’s not only the classroom instruction, but also the broader scientific community,” said Price.

Among today's quantum information superstars who worked at NIST are Kent Irwin (top left), now at Stanford, who helped to develop highly sensitive single-photon sensors and John Martinis (right). This photo was taken in the 1990s at the NIST-Boulder laboratories. Photo by NIST.

CU’s partnership with NIST has flourished over the years, both through JILA, a joint institute between �鶹��Ѱ��Boulder and NIST, and through the Professional Research Experience Program (�鶹��Ѱ��PREP) which provides research opportunities for students and postdoctoral researchers with scientists at NIST.

Martinis was one of the co-organizers of the inaugural Boulder Summer School for Condensed Matter and Materials Physics with Professor Leo Radzihovsky, which launched in 2000. He has returned to give lectures during the annual school several times since, maintaining connections with colleagues at �鶹��Ѱ��Boulder.

Martinis later became a professor at the University of California Santa Barbara, before working for Google and most recently co-founded a quantum computing startup Qolab.

The Nobel

Martinis shared the 2025 Nobel Prize in Physics with John Clarke and Michel Devoret “for the discovery of macroscopic quantum mechanical tunnelling and energy quantization in an electric circuit,” according to the Royal Swedish Academy of Sciences.

In the 1980s, Martinis was a graduate student in John Clarke’s lab at UC Berkeley, working alongside postdoctoral researcher Michel Devoret. Their experiments focused on electrical components called Josephson junctions – devices made of two superconductors separated by a thin oxide layer that particles ordinarily can’t cross.

Martinis shared the 2025 Nobel Prize in Physics with John Clarke and Michel Devoret for the discovery of macroscopic quantum mechanical tunnelling and energy quantization in an electric circuit.

However, thanks to a quantum effect called tunneling, pairs of electrons can pass through – even though this defies the laws of classical physics.

The idea dates back to 1928, when physicist George Gamow used quantum tunneling to explain why certain materials give off radiation, or alpha decay. Gamow later became a professor of physics at �鶹��Ѱ��Boulder and is the namesake to both the Gamow Tower in the Duane Physics and Astrophysics building and to the George Gamow Memorial Lecture Series.

Superconductors, when cooled to very low temperatures, allow electricity to flow without resistance. In this environment, particles behave as one unified wave, all moving together as if they are one.

Through a series of experiments, the team discovered that these large-scale quantum states acted like individual particles, showing behaviors of quantum mechanics like tunneling and discrete energy levels.

This work created the basis for using superconducting circuits to create qubits, the fundamental unit of quantum computers. It laid the groundwork for many researchers and companies now working to build the first operational quantum computers that have the potential to revolutionize technology in many areas, like drug discovery and cryptography.

Want to learn more? �鶹��Ѱ��Boulder boasts five Nobel laureates, four of them in physics. Professor of Physics Paul Beale is interviewed about the 2025 Nobel Prize in Physics at this link.

Get the latest info.

Like many rockstar scientists, 2025 physics Nobel Laureate John Martinis spent time in Boulder’s rich scientific ecosystem mentoring graduate students and inspiring others in quantum computing.

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Scholars aim to build community for women in quantum

Rachel Sauer — Fri, 25 Apr 2025 19:46:50 +0000

Scholars aim to build community for women in quantum Rachel Sauer Fri, 04/25/2025 - 13:46

Rachel Sauer

Quantum Scholars Emily Jerris and Annalise Cabra started �鶹��Ѱ��Women of Quantum to help women interested in careers in quantum to network and share experiences

First, the good news: Between 1970 and 2022, the percentage of U.S. women workers in STEM jobs grew from 7% to 26%.

The obvious and not-so-good news is that while women represent almost half the U.S. workforce, they hold only a quarter of STEM jobs. And the numbers get even more stark in quantum fields. A 2022 report from the London School of Economics and Political Science found that fewer than 2% of applicants for jobs in quantum fields are female.

Quantum Scholars Annalise Cabra (left) and Emily Jerris (right) gave a presentation about �鶹��Ѱ��Women of Quantum at the December Quantum Scholars meeting attended by �鶹��Ѱ��President Todd Saliman. (Photo: Casey Cass/�鶹��Ѱ��Boulder)

However, in the 100 years since German physicist Werner Heisenberg submitted his paper “On quantum-theoretical reinterpretation of kinematic and mechanical relationships” to the journal Zeitschrift für Physik, a July 1925 event that is broadly credited with kick-starting the quantum revolution, the possibilities and potential of quantum science and engineering have grown enormously.

Recognizing that potential, a group of �鶹��Ѱ�� scholars wants to help ensure that women participate equally and fully in quantum science and engineering.

�鶹��Ѱ��Women of Quantum, founded last semester by Quantum Scholars Emily Jerris and Annalise Cabra, aims to be a community of support, connection, mentorship and networking for women interested in pursuing careers or research in quantum fields.

“Our primary focus,” Cabra explains, “is just to create a space where we can come together, share our experiences and create relationships that are lasting.”

100 years of quantum

Both Jerris and Cabra say that this is an exciting time to be in quantum science and engineering. Not only did the United Nations declare 2025 as the International Year of Quantum Science and Technology, and not only did Colorado Gov. Jared Polis last week announce the Blueprint for Advancing K–12 Quantum Information Technology, but research happening on the �鶹��Ѱ��Boulder campus and in Colorado is swiftly expanding the boundaries of quantum technology.

However, they also add that as exciting as this time is, women in quantum fields still face some of the same roadblocks that women in STEM always have.

“I think if you asked most of the women in the club or just in a STEM major if they’ve had a moment where a peer or coworker has talked down to them or they felt not necessarily fully included in a project because they were the only woman in the group, I think most probably have,” Jerris says. “So, it’s nice to have a space to talk about that—how to navigate situations like that. A lot of us do research, too, and those types of situations are also really prevalent in the research space.”

Jerris and Cabra worked with Michael Ritzwoller, a physics professor of distinction and Quantum Scholars co-founder, and physics Professor Noah Finkelstein to create �鶹��Ѱ��Women of Quantum, which is open to all students, as a place for not only female Quantum Scholars, but for women across campus who are interested in pursuing careers in quantum science, technology or engineering.

Annalise Cabra (left) works with Brooke Nelson (right), a career advisor for the College of Engineering and Applied Sciences, on her resume during a recent �鶹��Ѱ��Women of Quantum meeting.

Supporting women in quantum

One of the group’s aims is creating networking and mentorship opportunities for members by asking professors and women working in quantum fields to speak at group meetings. This has included Alex Tingle, a �鶹��Ѱ��Boulder physics alumna and senior technical project engineer at Quantinuum, who was named one of the Wonder Women of the Quantum Industry by the Quantum Daily.

�鶹��Ѱ��Women of Quantum gatherings also focus on skill-building, including a recent meeting at which Brooke Nelson, a career advisor for the College of Engineering and Applied Sciences, gave a presentation on creating and honing a resume.

“One of our goals is to help (�鶹��Ѱ��Women of Quantum members) narrow in on their interests and build connections,” Cabra says. “And then also having opportunities to see how women in their shoes were able to navigate and build careers in quantum. I think it’s important for a lot of women in the field, too, to go back and encourage other women who are just starting out or just getting interested in quantum.”

The members of �鶹��Ѱ��Women of Quantum also get together for study sessions, “because even if we’re not taking the same classes, with other women you can feel more open and not like you’re the outlier in the group.”

Both Cabra, who is graduating next month, and Jerris, who is completing her third year, are interested in pursuing careers in a quantum field, bolstered by the support they’ve found in �鶹��Ѱ��Women of Quantum.

“It’s so fascinating because it’s just so unintuitive,” Cabra says. “It makes your brain think in such crazy ways, from the ways particles behave to the ways stars don’t collapse or do collapse, to parallel universes, and it all goes back to quantum. I think it’s just so exciting to study.”

Jerris adds that often the common perception of quantum science and technology is that “it’s kind of magic or something we don’t totally understand, but we actually do have a pretty good understanding of quantum. We know what’s going on and can model it, and we’re maybe just one step behind with how we can actually manipulate things. So, it’s not magic; it’s something we do know a lot about and we’re learning more every day.”

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Quantum Scholars Emily Jerris and Annalise Cabra started �鶹��Ѱ��Women of Quantum to help women interested in careers in quantum to network and share experiences.

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Top image: Casey Cass/�鶹��Ѱ��Boulder

Professor John Cumalat wins 2025 Hazel Barnes Prize

Rachel Sauer — Fri, 11 Apr 2025 22:19:58 +0000

Professor John Cumalat wins 2025 Hazel Barnes Prize Rachel Sauer Fri, 04/11/2025 - 16:19

Cumalat ‘literally re-shaped our understanding of the fundamental particles making up the known universe,’ colleagues note

John Cumalat, professor of distinction in the �鶹��Ѱ�� Department of Physics, has been awarded the 2025 Hazel Barnes Prize.

Established in 1991 by former chancellor James Corbridge to honor the late Hazel Barnes, �鶹��Ѱ��Boulder professor of philosophy from 1953-86, the $20,000 Hazel Barnes Prize celebrates the enriching interrelationship between teaching and research and is the largest and most prestigious award funded by the university.

“Professor Cumalat is an exemplary educator and researcher whose contributions to his students, this university and the field of physics are highly deserving of recognition,” said Chancellor Justin Schwartz. “His selection as the Hazel Barnes Prize winner reflects his dedication and ingenuity, and I am so proud of all the ways he utilizes these qualities in service to �鶹��Ѱ��Boulder and to humanity.”

Cumalat completed his PhD in physics from the University of California Santa Barbara in 1977 and his postdoctoral work with Fermilab in Batavia, Illinois, in 1979. Since joining the �鶹��Ѱ��Boulder physics faculty in 1981, he has garnered multiple honors, including the Best Should Teach Award in 2003, the Robert L. Stearns Award in 2010 and the BFA Excellence in Service Award in 2013. He became a professor of distinction in 2014.

“John is an educator in the broadest sense and has had a lasting impact on his students and colleagues. He leads by example, he leads from the front, and he leads with integrity and compassion.”

Best known for his research in particle physics and for his development of state-of-the-art particle-detector technology and instrumentation, Cumalat is a member of five professional organizations: Sigma Xi, the American Association for the Advancement of Science, the American Association of Physics Teachers, the American Astronomical Society and the American Physical Society.

He is also a member of the Compact Muon Solenoid experiment at the Large Hadron Collider at CERN, the current principal investigator of the �鶹��Ѱ��High Energy Physics Department of Energy Grant and the principal investigator of the Professional Research Experience Program with the National Institute of Standards and Technology.

Cumalat has authored or co-authored more than 1,500 publications and has been cited nearly 200,000 times, according to INSPIRE, an online hub that collects scholarly work in the field of high-energy physics. He has also served on several dozen graduate-student committees and on approximately 150 undergraduate-student thesis committees.

In their letters supporting Cumalat’s nomination for the Hazel Barnes Prize, several of his colleagues noted the significance of his contributions to the field of physics.

“John Cumalat has literally re-shaped our understanding of the fundamental particles making up the known universe,” wrote �鶹��Ѱ��Boulder Professor of Physics James Nagle. “His research focuses on the fundamental building blocks of matter and his leadership has led to critical advances in our understanding of quarks as well as the discovery of the Higgs boson.”

“John is one of the very best physicists that I know,” said Joel Butler, a distinguished scientist at Fermilab. “He is well-known and greatly respected throughout the U.S. and in the world. I consider it one of the most fortunate aspects of my own career that I have had this long and productive association with him.”

Other colleagues brought attention to Cumalat’s role in expanding and improving physics education at �鶹��Ѱ��Boulder.

“John’s leadership was critical in the expansion of the number of physics degrees in the College of Arts and Sciences,” said �鶹��Ѱ��Boulder Professor of Physics Paul D. Beale. “I believe that John’s most important and lasting contribution to teaching and learning is his leadership in expanding the number of physics students engaged in undergraduate research, especially conducting honors research projects with members of the physics faculty and other scientists and engineers.”

“John is an educator in the broadest sense and has had a lasting impact on his students and colleagues,” said Patricia Rankin, former physics professor at �鶹��Ѱ��Boulder and current chair of the Physics Department at Arizona State University. “He leads by example, he leads from the front, and he leads with integrity and compassion.”

“I am honored to be selected by previous Hazel Barnes winners as the 2025 Hazel Barnes Prize winner,” says Cumalat. “I particularly value my colleagues in physics nominating me for the award and for soliciting external supporting letters from students and national and international colleagues. I am humbled by the entire process.”

Did you enjoy this article? Subscribe to our newsletter. Passionate about physics? Show your support.

Cumalat ‘literally re-shaped our understanding of the fundamental particles making up the known universe,’ colleagues note.

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