Photon generation in an electromagnetic cavity with a time-dependent boundary

Wilson, C. M., Duty, T., Sandberg, M., Persson, F., Shumeiko, V. and Delsing, P. (2010) Photon generation in an electromagnetic cavity with a time-dependent boundary. Physical Review Letters, 105 23: . doi:10.1103/PhysRevLett.105.233907

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Author Wilson, C. M.
Duty, T.
Sandberg, M.
Persson, F.
Shumeiko, V.
Delsing, P.
Title Photon generation in an electromagnetic cavity with a time-dependent boundary
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
1079-7114
Publication date 2010-12-03
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.105.233907
Open Access Status File (Publisher version)
Volume 105
Issue 23
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract We report the observation of photon generation in a microwave cavity with a time-dependent boundary condition. Our system is a microfabricated quarter-wave coplanar waveguide cavity. The electrical length of the cavity is varied by using the tunable inductance of a superconducting quantum interference device. It is measured at a temperature significantly less than the resonance frequency. When the length is modulated at approximately twice the static resonance frequency, spontaneous parametric oscillations of the cavity field are observed. Time-resolved measurements of the dynamical state of the cavity show multiple stable states. The behavior is well described by theory. Our results may be considered a preliminary step towards demonstrating the dynamical Casimir effect.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Article number 233907

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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