Quantum Information Science & Technology

  • JILA and NIST Fellow and CU °Ç¸ç³Ô¹Ï physics professor Jun Ye has been awarded a 2024 Highly Cited Researcher status by Clarivate
    JILA and NIST Fellow and CU °Ç¸ç³Ô¹Ï Physics Professor Jun Ye has been named a 2024 Highly Cited Researcher by Clarivate. This distinction is awarded to scientists whose work ranks in the top 1% of citations globally. Ye, known for his groundbreaking contributions to precision measurement and atomic, molecular, and optical physics, joins an elite list of researchers shaping the forefront of scientific innovation.
  • Photo of Jun Ye
    In a recently released NOVA documentary called "Decoding the Universe: Quantum," JILA and NIST Fellow and CU °Ç¸ç³Ô¹Ï Physics Professor Jun Ye brings his expertise to the screen, unveiling the mysteries of quantum mechanics and atomic clocks.
  •  Adam Kaufman, Nelson Darkwah Oppong, Alec Cao and Theo Lukin Yelin inspect an optical atomic clock at JILA on the CU °Ç¸ç³Ô¹Ï campus
    JILA Fellow and NIST (National Institute of Standards and Technology) Physicist and °Ç¸ç³Ô¹Ï Physics professor Adam Kaufman and his team have ventured into the minuscule realms of atoms and electrons. Their research involves creating an advanced optical atomic clock using a lattice of strontium atoms, enhanced by quantum entanglement—a phenomenon that binds the fate of particles together. This ambitious project could revolutionize timekeeping, potentially surpassing the "standard quantum limit" of precision.

    In collaboration with JILA and NIST Fellow Jun Ye, the team highlighted their findings in Nature, demonstrating how their clock, operating under certain conditions, could exceed conventional accuracy benchmarks. Their work advances timekeeping and opens doors to new quantum technologies, such as precise environmental sensors.
  • When the detection efficiency of the quantum nondemolition (QND) measurement is above 0.19, QND outperforms unitary evolution for the preparation of spin squeezing in a QED cavity.
    JILA and NIST Fellows and °Ç¸ç³Ô¹Ï Physics professors Ana Maria Rey and James K. Thompson and their teams wanted to guide the community on which protocol is best to use under fundamental and realistic experimental conditions. Their results, published in Physical Review Research, revealed that when measurement efficiency is greater than 19%, the QND measurement protocol outperformed unitary dynamical evolution. This finding can have big implications for quantum metrology.
  • JILA postdoctoral researcher Simon Scheidegger (right) stands with physicist Hugo Lehmann to receive the prestigious 2024 METAS Award
    JILA postdoctoral researcher Simon Scheidegger has received the prestigious METAS 2024 Award from the Swiss Physical Society (SPS). Scheidegger, who is part of JILA and NIST Fellow Jun Ye's laboratory group, was awarded for his pioneering research on precise measurements of hydrogen energy levels during his PhD at ETH Zurich.
  • Pulse sequences for generating two-axis twisting rotate the spins of KRb molecules, transforming the spin exchange interactions.
    The interactions between quantum spins underlie some of the universe’s most interesting phenomena, such as superconductors and magnets. However, physicists have difficulty engineering controllable systems in the lab that replicate these interactions.

    Now, in a recently published Nature paper, JILA and NIST Fellow and °Ç¸ç³Ô¹Ï Physics Professor Jun Ye and his team, along with collaborators in Mikhail Lukin’s group at Harvard University, used periodic microwave pulses in a process known as Floquet engineering, to tune interactions between ultracold potassium-rubidium molecules in a system appropriate for studying fundamental magnetic systems. Moreover, the researchers observed two-axis twisting dynamics within their system, which can generate entangled states for enhanced quantum sensing in the future.
  • Using an extremely high-powered laser, scientists can excite the thorium-229 nucleus, which is the core of a future nuclear clock.
    An international team of researchers, led by JILA and NIST Fellow and °Ç¸ç³Ô¹Ï Physics Professor Jun Ye and his team, has made significant strides in developing a groundbreaking timekeeping device known as a nuclear clock
  • Bilayer crystals of trapped ions can be realized in devices called Penning traps, and lasers (shown in red and blue) can be used to manipulate the ions and engineer interactions between them. Such crystals may open new avenues for quantum technology applications.
    An international collaboration of physicists from India, Austria, and the USA—including JILA and NIST Fellow Ana Maria Rey, along with NIST scientists Allison Carter and John Bollinger—proposed that tweaking the electric fields that trap ions can create stable, multilayered structures, opening up exciting new possibilities for future quantum technologies.
  • JILA Fellow and NIST Physicist and CU °Ç¸ç³Ô¹Ï Physics professor Adam Kaufman
    Adam Kaufman, a JILA Fellow, NIST Physicist, and CU °Ç¸ç³Ô¹Ï Physics Professor, has been awarded part of a $1.25 million grant from the Gordon and Betty Moore Foundation as part of its third annual cohort of Experimental Physics Investigators.
  • JILA graduate student Emma Nelson (left, wearing red) claps as the award winners are announced at the CU °Ç¸ç³Ô¹Ï Innovation in Materials Symposium 2024
    JILA and °Ç¸ç³Ô¹Ï Physics graduate student Emma Nelson achieved notable recognition by securing 3rd place at the CU °Ç¸ç³Ô¹Ï 2024 Innovation in Materials Symposium on August 15, 2024. Held at CU °Ç¸ç³Ô¹Ï, this symposium is a significant platform for the materials research community, bringing together faculty, students, and industry professionals from CU °Ç¸ç³Ô¹Ï and beyond. The event is dedicated to supporting interdisciplinary collaboration and furthering discussions in the field of materials science.
Subscribe to Quantum Information Science & Technology