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 B73: Superconducting Qubits: Design and device tools
11:30 AM–2:30 PM,
Monday, March 6, 2023
Room: Room 405
Sponsoring
Unit:
DQI
Chair: Alexander McDonald, Université de Sherbrooke
Abstract: B73.00012 : Spectroscopic method for measuring the number of photons in superconducting Kerr parametric oscillators*
1:42 PM–1:54 PM
Presenter:
keisuke matsumoto
(Tokyo University of Science)
Authors:
keisuke matsumoto
(Tokyo University of Science)
Aiko Yamaguchi
(NEC)
Tsuyoshi Yamamoto
(NEC)
Shiro Kawabata
(AIST)
Yuichiro Matsuzaki
(AIST)
When we solve the combinational optimization problems using KPOs, it is necessary to precisely control the photon number of the KPOs.
Here, we propose a feasible method to estimate the photon number of the KPO. We consider coupling an ancillary qubit to the KPO and show that spectroscopic measurements on the ancillary qubit provide information on the photon number of the KPO.
*This work was supported by MEXT's Leading Initiative for Excellent Young Researchers, JST PRESTO (Grant No. JPMJPR1919), Japan. This paper is partly based on the results obtained from a project, JPNP16007, commissioned by the New Energy and Industrial Technology Development Organization (NEDO), Japan.
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