Method for Direct Measurement of the Wigner Function in Cavity QED and Ion Traps
- 31 March 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 78 (13), 2547-2550
- https://doi.org/10.1103/physrevlett.78.2547
Abstract
We show that the Wigner function corresponding to an electromagnetic field in a cavity or a vibronic state of a trapped ion can be directly measured by means of a simple experimental procedure. The proposed method is insensitive to the relatively low detection efficiency in cavity QED experiments and yields a direct physical meaning to the Wigner distribution.Keywords
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