Events

Upcoming Events

Fall 2025 CUbit Quantum Seminar Series

ÌýÌýFall 2025 CUbit Quantum Seminar Series
Supported by the CUbit Quantum Initiative at ÀϾÅÆ·²è
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  • Location: CASE Building – Chancellor Hall, ÀϾÅÆ·²è
  • Light refreshments: 3:30 p.m.
  • Talk begins: 4:00 p.m.
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  • Who: Mohammad Mirhosseini (Caltech)
  • Title: A mechanical quantum memory
  • Abstract: Mechanical systems operating in the quantum regime offer an attractive platform for quantum information processing, precision sensing, and probing fundamental physics. In this talk, I will present new techniques for generating and characterizing non-classical states of mechanical motion using superconducting qubits. Our approach couples the electrical and mechanical degrees of freedom via modulation of the electrostatic force in a miniaturized vacuum-gap capacitor. By eliminating the need for piezoelectricity, we are able to build and measure mechanical oscillators made of single-crystal silicon, a material with very low acoustic loss. Using the qubit as a probe of the oscillator coherence, we measure single-phonon decay and (echo) decoherence times of 25 ms and 1 ms, respectively. Moreover, we observes signatures of strong coupling between the mechanical oscillator and individual two-level-state defects, which are believed to be the microscopic origins of mechanical decoherence. These results opens up exciting opportunities to explore the fundamental limits of mechanical coherence and to employ mechanical oscillators as bosonic memory elements in quantum processors.
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Live only; no recording will be available
  • Who: Soonwon Choi (MIT)
  • Title: Coming soon
  • Abstract: Coming soon
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Live only; no recording will be available

Past Events

Funded with the generous support of The Caruso Foundation.

Fall 2025 Seminars

  • Peter Maurer (University of Chicago) Monday, September 22, 2025

Spring 2025 Seminars

  • Steven Girvin (Yale) Tuesday, April 29
  • Johannes Zeiher (Max-Planck Institute of Quantum Optics) Thursday, March 20, 2025
  • Dr. John Bowers, (University of California) Santa Barbara February 10th, 2025

Fall 2024 Seminars

  • Dr. Lawrence Cheuk, (Princeton) ÌýDecember 9, 2024
  • Professor Peter Rakich, (Yale) ÌýNovember 4, 2024
  • Dr. Michael Foss-Feig, (Quantinuum) ÌýOctober 7, 2024

Spring 2024 Seminars

  • Dr. Jeff Thompson (Princeton) April 30, 2024
  • Dr.Amir Safavi-Naeni, (Stanford) April 16, 2024
  • Antoine Browaeys (Institut d’Optique) February 27, 2024

Fall 2023 Seminars

  • 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

Spring 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

Fall 2022 Seminars

  • 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 (ÀϾÅÆ·²è)ÌýAugust 29, 2022Ìý
    Fracton Dynamics

Spring 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

Fall 2021 Seminars

  • 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

Spring 2020 Seminars

  • 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

Spring 2019 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

Fall 2019 Seminars

  • 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

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