Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session W67: Continuous-Variable Quantum Information: Hardware
3:00 PM–6:00 PM,
Thursday, March 9, 2023
Room: Room 412
Sponsoring
Unit:
DQI
Chair: Yuxin Wang, University of Chicago
Abstract: W67.00005 : Fast entanglement of weakly interacting harmonic oscillators with superconducting qubits for bosonic encoded quantum computation*
4:12 PM–4:24 PM
Presenter:
Asaf A Diringer
(Israel institute of technology)
Authors:
Asaf A Diringer
(Israel institute of technology)
Eliya Blumenthal
(Technion)
Shay Hacohen-Gourgy
(Technion - Israel Institute of Technolog)
We use a symmetry-inspired approach for fast displacement gates conditioned on the state of the qubit, and utilize this to produce and measure both entangled and disentangled cat states in a multi-mode cavity weakly coupled to a single transmon qubit. Even though the typical coherence times of our setup are of the same order of magnitude as the coupling strength, through our control scheme we are able to measure a violation of CHSH inequality with an entanglement witness value of ~84%.
*This work was supported by the Israeli science foundation (ISF) and the PAZY foundtion.
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