News & Research Highlights

In the quiet halls of the Duane Physics building at the University of Colorado Boulder, two JILA researchers, postdoctoral research associate Catie LeDesma and graduate student Kendall Mehling, combine machine learning with atom interferometry to create the next generation of quantum sensors. Because these quantum sensors can be applied to various fields, from satellite navigation to measuring Earth’s composition, any advancement has major implications for numerous industries. 

As reported in a recent article preprint, the researchers successfully demonstrated how to build a quantum sensor using atoms moving through crystals made entirely of laser light. They applied accelerated forces to atoms along multiple directions and, using this sensor, measured the results, which closely matched values predicted by quantum theory. LeDesma and Mehling also showed that their device could accurately detect accelerations from just one run of their experiment, a feat that is very difficult to accomplish with traditional cold atom interferometry. 

Dr. Matthew Norcia, a member of JILA’s extensive alumni network, has been awarded the prestigious 2024 International Union of Pure and Applied Physics (IUPAP) Early Career Scientist Prize in Atomic, Molecular, and Optical Physics. The IUPAP Early Career Scientist Prize honors early career physicists for their exceptional contributions within specific subfields, offering recognition through a certificate, medal, and monetary award.

The JILA Association of Graduate Students (JAGS) proudly hosted its inaugural Graduate Student Seminar, marking the beginning of a promising seminar series to foster academic exchange, collaboration, and community within JILA. The event showcased the cutting-edge research conducted by three JILA graduate students, drawing an audience of over 70 graduate students, postdoctoral researchers, and staff members.

JILA postdoctoral researcher Jake Higgins, part of JILA and NIST Fellow and University of Colorado Boulder physics professor Jun Ye’s research group, has been awarded a coveted spot at the 2024 MIT Chemistry Future Faculty Symposium. This prestigious event will be held on August 12 and 13 on the MIT campus in Cambridge, MA, featuring some of the brightest early-career scientists poised to pursue academic careers.

JILA, a joint institute of the University of Colorado Boulder and the National Institute of Standards and Technology (NIST) hosted its inaugural workshop on recent technological and research advancements in quantum light from July 17 to 19, 2024. The conference was sponsored by the National Science Foundation (NSF)-funded JILA Physics Frontier Center (PFC), the CUbit Quantum Initiative, and laser company Toptica. 

The event invited speakers from various prestigious institutions, including Texas A&M University, the National Autonomous University of Mexico, Columbia University, Wake Forest University, Livermore National Lab, the University of Illinois Urbana-Champaign, Caltech, Oak Ridge National Lab, Cornell University, William & Mary, University College London, the University of Oregon, the University of Toronto, and the University of Virginia, along with multiple representatives from NIST.

JILA and NIST Fellow and University of Colorado Boulder Physics professor Jun Ye and his team at JILA, a collaboration between NIST and the University of Colorado Boulder, have developed an atomic clock of unprecedented precision and accuracy. This new clock uses an optical lattice to trap thousands of atoms with visible light waves, allowing for exact measurements. It promises vast improvements in fields such as space navigation, particle searches, and tests of fundamental theories like general relativity.

On June 20, 2024, the U.S. National Science Foundation awarded JILA and the University of Colorado Boulder a $20 million grant to create the National Quantum Nanofab (NQN), a cutting-edge facility poised to revolutionize quantum technology. 

JILA Fellow and University of Colorado Boulder physics professor Cindy Regal remarked, "The NQN will be a unique facility for quantum discoveries and technology. I look forward to seeing the NQN as a national resource in quantum and interfacing with a wide range of JILA research.”

Anya Grafov, a graduate student at JILA, has been awarded the Best Poster Award at the IEEE Magnetics Society Summer School 2024. Studying under JILA Fellows and University of Colorado Boulder Physics professors Margaret Murnane and Henry Kapteyn, Grafov's poster titled “Probing Ultrafast Spin Dynamics with Extreme Ultraviolet High Harmonics” was one of only nine to receive this prestigious recognition. 

Yunzhe “Oliver” Shao, a graduate student at JILA in the group led by JILA Fellows and University of Colorado Boulder Physics professors Margaret Murnane and Henry Kapteyn, has been awarded the Best Paper Award at the IEEE Conference on Computational Imaging Using Synthetic Apertures. 

JILA Fellow, NIST Physicist, and University of Colorado Boulder Physics Professor Adam Kaufman has been honored with a prestigious 2024 Friedrich Wilhelm Bessel Research Award by the Alexander von Humboldt Foundation. 

Aaron Young, a recently graduated Ph.D. student in the lab of JILA Fellow, NIST Physicist, and University of Colorado Boulder Physics Professor Adam Kaufman, has been awarded the prestigious 2024 Deborah Jin Award for Outstanding Doctoral Thesis Research in Atomic, Molecular, or Optical Physics by the American Physical Society (APS) for his work done at JILA. The award was announced in Fort Worth, Texas, at the 2024 55th Annual Meeting of the APS Division of Atomic, Molecular, and Optical Physics (DAMOP).

One of the biggest challenges in quantum technology and quantum sensing is “noise”–seemingly random environmental disturbances that can disrupt the delicate quantum states of qubits, the fundamental units of quantum information. Looking deeper at this issue, JILA Associate Fellow and University of Colorado Boulder Physics assistant professor Shuo Sun recently collaborated with Andrés Montoya-Castillo, assistant professor of chemistry (also at CU Boulder), and his team to develop a new method for better understanding and controlling this noise, potentially paving the way for significant advancements in quantum computing, sensing, and control. Their new method, which uses a mathematical technique called a Fourier transform, was published recently in the journal npj Quantum Information. 

On Tuesday, May 28th, Governor Jared Polis made a historic visit to JILA, a joint institute established by the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder, to sign the recently passed Quantum Tax Credit Bill. This legislation aims to incentivize the adoption and development of quantum technology within Colorado, solidifying the state's position as a leader in this cutting-edge field.

While industry and academia tend to be the two main job trajectories after graduating with a Ph.D. or postdoctoral degree, some individuals, like Tanya Ramond, combine aspects of these careers in her role as Founder and CEO of Sapienne Consulting. 

“As an independent consultant, I am driven by a deep passion for commercialization and product strategy in deep tech areas,” Ramond elaborates. “These areas of technology are particularly challenging, often hardware-based, and heavily reliant on intellectual property. My expertise and enthusiasm extend to fields like quantum physics, optics, aerospace, and clean tech, inspiring those around me to push the boundaries of what is possible.” 

To highlight the pivotal role of federal funding in advancing quantum research, the National Science Foundation (NSF) hosted its inaugural Quantum Showcase on Capitol Hill two weeks ago.  The event highlighted the potential of government-funded quantum initiatives and included NSF-funded quantum researchers nationwide. JILA, a joint institute between the University of Colorado Boulder and NIST, was represented at the event by JILA Fellow and University of Colorado Boulder Physics Professor Heather Lewandowski and JILA graduate student Qizhong Liang, a member of JILA and NIST Fellow Jun Ye’s research group. 

In daily life, when two objects are “indistinguishable,” it’s due to an imperfect state of knowledge. As a street magician scrambles the cups and balls, you could, in principle, keep track of which ball is which as they are passed between the cups. However, at the smallest scales in nature, even the magician cannot tell one ball from another. True indistinguishability of this type can fundamentally alter how the balls behave. For example, in a classic experiment by Hong, Ou, and Mandel, two identical photons (balls) striking opposite sides of a half-reflective mirror are always found to exit from the same side of the mirror (in the same cup). This results from a special kind of interference, not any interaction between the photons. With more photons, and more mirrors, this interference becomes enormously complicated.

Measuring the pattern of photons that emerges from a given maze of mirrors is known as “boson sampling.” Boson sampling is believed to be infeasible to simulate on a classical computer for more than a few tens of photons. As a result, there has been a significant effort to perform such experiments with actual photons and demonstrate that a quantum device is performing a specific computational task that cannot be performed classically. This effort has culminated in recent claims of quantum advantage using photons.

Now, in a recently published Nature paper, JILA Fellow and NIST Physicist and University of Colorado Boulder Physics Professor Adam Kaufman and his team, along with collaborators at NIST (the National Institute of Standards and Technology), have demonstrated a novel method of boson sampling using ultracold atoms (specifically, bosonic atoms) in a two-dimensional optical lattice of intersecting laser beams. 

JILA and the University of Colorado Boulder's Department of Physics proudly announce two 2024 Physics Department Teaching Award recipients: JILA Fellow and NIST Fellow and Professor Eric Cornell and JILA Fellow and  Professor John Bohn. These awards recognize their exceptional dedication to teaching and their profound impact on students at different levels of their academic journey.

Precisely measuring the energy states of individual atoms has been a historical challenge for physicists due to atomic recoil. When an atom interacts with a photon, the atom “recoils” in the opposite direction, making it difficult to measure the position and momentum of the atom precisely. This recoil can have big implications for quantum sensing, which detects minute changes in parameters, for example, using changes in gravitational waves to determine the shape of the Earth or even detect dark matter. 

In a new paper published in Science, JILA and NIST Fellows Ana Maria Rey and James Thompson, JILA Fellow Murray Holland, and their teams proposed a way to overcome this atomic recoil by demonstrating a new type of atomic interaction called momentum-exchange interaction, where atoms exchanged their momentums by exchanging corresponding photons. 

Using a cavity—an enclosed space composed of mirrors—the researchers observed that the atomic recoil was dampened by atoms exchanging energy states within the confined space. This process created a collective absorption of energy and dispersed the recoil among the entire population of particles.

Luke Coffman, a dedicated undergraduate research assistant at JILA, part of the University of Colorado Boulder, has been awarded the prestigious Goldwater Scholarship for the 2024 academic year. This award places Coffman among a select group of 438 students nationwide recognized for their significant achievements and potential in science, technology, engineering, and mathematics research.

While it may not look like it, the interstellar space between stars is far from empty. Atoms, ions, molecules, and more reside in this ethereal environment known as the Interstellar Medium (ISM). The ISM has fascinated scientists for decades, as at least 200 unique molecules form in its cold, low-pressure environment. It’s a subject that ties together the fields of chemistry, physics, and astronomy, as scientists from each field work to determine what types of chemical reactions happen there. 

Now, in the recently published cover article of the Journal of Physical Chemistry A, JILA Fellow and University of Colorado Boulder Physics Professor Heather Lewandowski and former JILA graduate student Olivia Krohn highlight their work to mimic ISM conditions by using Coulomb crystals, a cold pseudo-crystalline structure, to watch ions and neutral molecules interact with each other.