Quantum Heating of a Nonlinear Resonator Probed by a Superconducting Qubit

F.R. Ong; M. Boissonneault; A.C. Doherty; A Blais; P Bertet; F. Mallet; Denis Vion; D. Estève

Quantum Heating of a Nonlinear Resonator Probed by a Superconducting Qubit

F.R. Ong ^{1, 2} M. Boissonneault ³ A.C. Doherty ⁴ A Blais ³ P Bertet ² F. Mallet ⁵ Denis Vion ² D. Estève ²

1 IQC - Institute for Quantum Computing [Waterloo]

2 QUANTRONICS - Quantronics Group

SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay

3 Université de Sherbrooke [Sherbrooke]

4 School of Physics, University of New South Wales, Sydney NSW 2052, Australia

5 LPA - Laboratoire Pierre Aigrain

Abstract : We measure the quantum fluctuations of a pumped nonlinear resonator, using a superconducting artificial atom as an in-situ probe. The qubit excitation spectrum gives access to the frequency and temperature of the intracavity field fluctuations. These are found to be in agreement with theoretical predictions; in particular we experimentally observe the phenomenon of quantum heating.

Document type :

Journal articles

Domain :

Physics [physics]

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https://hal-cea.archives-ouvertes.fr/cea-01477717
Contributor : Dominique Girard <>
Submitted on : Monday, February 27, 2017 - 4:05:43 PM
Last modification on : Thursday, February 7, 2019 - 3:22:30 PM
Long-term archiving on : Sunday, May 28, 2017 - 2:08:28 PM

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