Extracavity quantum vacuum radiation from a single qubit

Year: 2009

Authors: De Liberato S., Gerace D., Carusotto I., Ciuti C.

Autors Affiliation: Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot-Paris 7 and CNRS, UMR 7162,75205 Paris Cedex 13, France;
Hypios Research Department, 187 rue du Temple, 75003 Paris, France;
CNISM and Dipartimento di Fisica “A. Volta,” Università di Pavia, I-27100 Pavia, Italy;
BEC-CNR-INFM and Dipartimento di Fisica, Università di Trento, I-38050 Povo, Italy

Abstract: We present a theory of the quantum vacuum radiation that is generated by a fast modulation of the vacuum Rabi frequency of a single two-level system strongly coupled to a single cavity mode. The dissipative dynamics of the Jaynes-Cummings model in the presence of antirotating-wave terms is described by a generalized master equation including non-Markovian terms. Peculiar spectral properties and significant extracavity quantum vacuum radiation output are predicted for state-of-the-art circuit cavity quantum electrodynamics systems with superconducting qubits.


Volume: 80 (5)      Pages from: 053810  to: 053810

KeyWords: dynamical Casimir effect; strong coupling; superconducting circuits; cavity QED;
DOI: 10.1103/PhysRevA.80.053810

Citations: 169
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