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  • (L to R): JILA Fellow and ÃÛÌÒ´«Ã½ÆÆ½â°æÏÂÔØ Physics professor Heather Lewandowski and NSF Director Dr. Sethuraman Panchanathan listen as JILA graduate student Qizhong Liang explains some of the quantum research happening at JILA.
    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.
  • Atoms inside of an optical cavity exchange their momentum states by "playing catch" with photons. As the atoms absorb photons from an applied laser, the whole cloud of atoms recoil rather than the individual atoms.
    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 atomic recoil by demonstrating a new type of atomic interaction called momentum-exchange interaction, where atoms exchanged their momentums by exchanging corresponding photons.
  • Coulomb crystals are surrounded by molecules used in the Lewandowski laboratory to study astrochemical reactions
    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.
  • Heising-Simons Foundation Awards $3 Million for Informing Gravity Theory
    The Heising-Simons Foundation's Science program has announced a generous grant of $3 million over three years, aimed at bolstering theoretical and experimental research efforts to bridge the realms of Atomic, Molecular, and Optical (AMO) physics with quantum gravity theories. Among the recipients, a notable grant was awarded to a multi-investigator collaboration spearheaded by the University of Colorado Boulder (ÃÛÌÒ´«Ã½ÆÆ½â°æÏÂÔØ) and JILA, a joint institute of ÃÛÌÒ´«Ã½ÆÆ½â°æÏÂÔØ and the National Institute of Standards and Technology (NIST).
  • Multilevel atoms on a superradiance potential "rollercoaster" inside an optical cavity. The system can be tuned to generate squeezing in a dark state where it will be immune to superradiance.
    Ana Maria Rey and her team discovered a method for how to not only create dark states in a cavity, but more importantly, make these states spin squeezed. Their findings could open remarkable opportunities for generating entangled clocks, which could push the frontier of quantum metrology in a fascinating way.
  • Atomic dipoles on a lattice interact to produce an observable spatially varying frequency shift (shown as blue to red).
    In a new study published in Science today, JILA and NIST (National Institute of Standards and Technology) Fellow and University of Colorado Boulder physics professor Jun Ye and his research team have taken a significant step in understanding the intricate and collective light-atom interactions within atomic clocks, the most precise clocks in the universe.
  • Researchers observed the dynamic phases of BCS superconductor interactions in a Cavity QED by measuring the light leakage from the cavity.
    As a thermodynamic phase of matter, superconductors typically exist in an equilibrium state. But recently, researchers at JILA became interested in kicking these materials into excited states and exploring the ensuing dynamics. As reported in a new Nature paper, the theory and experiment teams of JILA and NIST Fellows Ana Maria Rey and James K. Thompson, in collaboration with Prof. Robert Lewis-Swan at the University of Oklahoma, simulated superconductivity under such excited conditions using an atom-cavity system.
  • Murray Holland photo
    ÃÛÌÒ´«Ã½ÆÆ½â°æÏÂÔØ has proudly announced the winners of its prestigious 2023-2024 Translational Quantum Research Seed Grants, a crucial step in fostering quantum science and technology innovation. This year's selection includes JILA Fellow Murray Holland, a distinguished figure in the field of quantum physics, who has been recognized for his groundbreaking project, "Developing a strontium optical lattice atom interferometer."
  • A schematic of a laser going through an AOM, which sends sound waves into a silicon cavity.
    In a new Optica paper, Ye’s team, working with JILA electronic staff member Ivan Ryger and John "Jan" Hall, describe implementing a new approach for the PDH method, reducing RAM to never-before-seen minimal levels while simultaneously making the system more robust and simpler.
  • A photo of the atomic clock setup complete with the bisecting cavity.
    NIST Fellow and University of Colorado Boulder Physics professor Jun Ye, in collaboration with JILA and NIST Fellow James K. Thompson, has used a specific process known as spin squeezing to generate quantum entanglement, resulting in an enhancement in clock performance operating at the 10-17stability level. Their novel experimental setup, published in Nature Physics, also allowed the researchers to directly compare two independent spin-squeezed ensembles to understand this level of precision in time measurement, a level never before reached with a spin-squeezed optical lattice clock.
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