RQC Colloquium

28th RQC Colloquium

  • Speaker

    Prof. Dan Stamper-Kurn
    (University of California, Berkeley )

  • Date

    16:00-17:00 (JST), November 6, 2024 (Wednesday)

  • Venue

    Hybrid(Zoom・Wako C00 Administrative HQ Building, 2F Large Meeting Room)

  • Title

    Quantum systems and devices built of ultracold atoms and light

  • Inquiries

    rqc_colloquium_inquiry[at]ml.riken.jp

  • Registration Form

    https://krs2.riken.jp/m/rqc_registration_form

Abstract
By placing ultracold atoms within an optical cavity, we couple a many-body quantum system with a single mode of light. This light serves a dual role, both as ‘‘force carrier’’ that drives the atoms coherently, and also as an information carrier that by which we can measure the quantum system, potentially in vivo. I will discuss experiments performed on optical cavities containing either large atomic ensembles or mesoscopic atomic systems constructed atom-by-atom using optical tweezer arrays. Within this setting, we realize fast high-fidelity measurements on single atoms, a prelude to quantum error correction within a quantum information processor. We explore autonomous feedback stabilization of quantum systems. Lastly, we explore the collective coupling of a mesoscopic atom array to cavity light, observing a symmetry-breaking phase transition and hallmarks of mesoscopic physics. I will conclude with a few words describing the Challenge Institute for Quantum Computation, one of the academic quantum centers established as part of the US National Quantum Initiative.
Flyer: 28th RQC Colloquium Flyer

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