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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 UNSW - School of Physics [UNSW Sydney]
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.
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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 : Tuesday, December 15, 2020 - 3:06:56 AM
Long-term archiving on: : Sunday, May 28, 2017 - 2:08:28 PM

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CEA | CNRS | UNIV-PARIS7 | UPMC | DSM-IRAMIS | IRAMIS-SPEC | USPC | CEA-DRF | SORBONNE-UNIVERSITE | UNIV-PARIS | PSL | SU-TI

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F.R. Ong, M. Boissonneault, A.C. Doherty, A Blais, P Bertet, et al.. Quantum Heating of a Nonlinear Resonator Probed by a Superconducting Qubit. Physical Review Letters, American Physical Society, 2013, 110, pp.047001. ⟨10.1103/PhysRevLett.110.047001⟩. ⟨cea-01477717⟩

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