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arXiv · 1210.3472

Quantum Heating of a nonlinear resonator probed by a superconducting qubit

F. R. Ong·M. Boissonneault·F. Mallet·A. C. Doherty·A. Blais·D. Vion·D. Esteve·P. Bertet
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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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F. R. Ong, M. Boissonneault, F. Mallet, A. C. Doherty, A. Blais, D. Vion, D. Esteve, P. Bertet. 2012-10-23. Quantum Heating of a nonlinear resonator probed by a superconducting qubit. https://doi.org/10.1103/physrevlett.110.047001

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