Events

Upcoming Events

Spring 2025 CUbit Quantum Seminar Series

ÌýÌýLight refreshments will be served starting at 3:30 p.m. Talk begins at 4 p.m.

Thursday March 20th SEMINAR TO BE HELD IN THE X317/X325

This seminar series is sponsored by CUbit with generous support of the Caruso Foundation.

  • Who: Professor John Bowers (University of California, Santa Barbara)
  • Title: High-fidelity detection and continuous operation of strontium arrays in optical lattices
  • Abstract:ÌýAtom arrays have shaped the research frontier in quantum simulation, quantum metrology and quantum computation in recent years. In most experiments, trap configurations are formed via holographic methods or acousto-optic deflectors, which offer exceptional versatility and dynamic control.
    In this talk, I will introduce a complementary approach to realizing microscopically controlled atom arrays by combining static large-scale optical lattices with optical tweezer arrays. Utilizing a specialized, highly anisotropic lattice geometry, we directly load thousands of individually addressable strontium atoms from the magneto-optical trap. These atoms are subsequently imaged with high fidelity and minimal loss using repulsive Sisyphus-cooling. Exploiting a bichromatic combination of lattice array and optical tweezer array, we demonstrate the iterative assembly and continuous operation of atom arrays with more than a thousand sorted atoms. To prepare our system for applications in quantum computing and quantum simulation, we furthermore realize a qubit in the meta-stable fine-structure states of strontium. We demonstrate long coherence times and high-fidelity manipulation of this qubit, as well as fast initialization via coherent three-photon coupling from the ground state. Our work paves the way to scale tweezer-based quantum simulators to larger system sizes and opens an alternative preparation route for Hubbard systems in optical lattices without the need for evaporation.
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ÌýLive only; no recording will be available

Past Events

Funded with the generous support of The Caruso Foundation.

2023-2024 Seminars

  • Dr. John Bowers, Photonic Integrated Circuit Technology for Quantum and Other Applications, February 10th, 2025
  • Dr. Lawrence Cheuk, Programmable Molecular Tweezer Arrays for Quantum Science, December 9, 2024
  • Professor Peter Rakich, Quantum Optomechanical Control of Bulk Acoustic Phonons, November 4, 2024
  • Dr. Jeff Thompson, Associate Professor of Electrical and Computer Engineering, Princeton April 30, 2024
  • Dr.Amir Safavi-Naeni, Associate Professor of Applied Physics and, by courtesy, of Electrical Engineering, Stanford April 16, 2024
  • Antoine Browaeys (Group Leader, Quantum Optics – Atoms, Laboratoire Charles Fabry atÌýInstitut d’Optique) February 27, 2024
  • Leticia Tarruell (Ultracold Quantum Gases, ICFO, Barcelona Institute of Science and Technology)December 11, 2023
  • John Preskill (Caltech) November 13, 2023
  • Christopher Monroe (Duke) October 23, 2023

2022-2023 Seminars

  • Mikhail Lukin (Harvard)ÌýMay 1, 2023Ìý
  • Jon Simon (Stanford) April 10,Ìý2023Ìý
  • Amir Safavi-Naeini (Stanford) March 13,Ìý2023ÌýCANCELED due to illness.
  • Sabrina Maniscalco (University of Helsinki) February 6,Ìý2023Ìý
  • Nathalie de Leon (Princeton University)January 30,Ìý2023ÌýÌýÌýWatch TalkÌý
  • John Martinis (UC Santa Barbara)December 12, 2022
  • Ana Garcia (Columbia University)December 5, 2022
  • Ferdinand Kuemmeth (Niels Bohr Institute)November 7, 2022
  • Kartik A. SrinivasanÌý(NIST) October 24, 2022
  • Mark Eriksson (University of Wisconsin-Madison) October 17, 2022Ìý
    Quantum Computing Using Electron Spins in Silicon
  • Eugene Simon PolzikÌý(Niels Bohr Institute) September 26, 2022Ìý
    Quantum Physics with Macroscopic Objects
  • Rahul Nandkishore (¾«Æ·SMÔÚÏßӰƬ)ÌýAugust 29, 2022Ìý
    Fracton Dynamics

2021-2022 Seminars

  • Hong Tang (Yale)ÌýApril 25, 2022Ìý
    Integrated Nonlinear Photonics for Quantum Frequency Conversion
  • Marko Loncar (Harvard)ÌýApril 18, 2022Ìý
    New Opportunities with Old Materials
  • John Doyle (Harvard)March 28, 2022
    Cold and Ultra-Cold Molecules for Quantum Science
  • Krister Shalm (NIST)February 14, 2022
    Quantum Entropy as a ServiceÌý
  • Jelena Vuckovic (Stanford) December 6, 2021
    Scalable Semiconductor Quantum SystemsÌý
  • Ben Bloom (Atom Computing)ÌýNovember 8, 2021
    Optically Trapped Atomic QubitsÌý
  • Will Oliver (MIT)October 11, 2021
    Giant Artifical Atoms and Waveguide QEDÌý
  • Scott Diddams (NIST)ÌýSeptember 13, 2021
    Optical Frequency Combs 2.0Ìý

2019-2020 Seminars

  • Ania Jayich (UCSB)ÌýFebruary 26, 2019
  • Andrei Faraon (Caltech)ÌýMarch 12, 2019
  • Markus Greiner (Harvard)ÌýMarch 19, 2019
  • Vladan Vuletic (MIT)ÌýApril 2, 2019
  • Kai-Mei Fu (UW Seattle)ÌýApril 30, 2019
  • Jack Harris (Yale)ÌýMay 14, 2019
  • Jonathan Home (ETH)ÌýMay 14, 2019
  • Nergis Mavalvala (MIT)ÌýSeptember 30, 2019
  • Dan Oron (Weizmann)ÌýOctober 28, 2019
  • Franco Wong (MIT)ÌýNovember 4, 2019
  • David Schuster (Chicago)ÌýNovember 18, 2019
  • Andrew Wilson (NIST)ÌýDecember 2, 2019
  • John Martinis (UCSB,ÌýGoogle)ÌýFebruary 10, 2020
  • Alexander Gaeta (Columbia)ÌýScheduled February 24, 2020
  • Aram Harrow (MIT)ÌýScheduled March 9, 2020, postponed
  • Jelena Vuckovic (Stanford)ÌýScheduled April 13, 2020, postponed
  • John Doyle (Harvard)ÌýScheduled April 20, 2020, postponed