METHOD FOR DIRECT MEASUREMENT OF THE WIGNER FUNCTION IN CAVITY QED AND ION TRAPS

Authors
LUTTERBACH LG DAVIDOVICH L
Citation
Lg. Lutterbach et L. Davidovich, METHOD FOR DIRECT MEASUREMENT OF THE WIGNER FUNCTION IN CAVITY QED AND ION TRAPS, Physical review letters, 78(13), 1997, pp. 2547-2550
Citations number
29
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
13
Year of publication
1997
Pages
2547 - 2550
Database
ISI
SICI code
0031-9007(1997)78:13<2547:MFDMOT>2.0.ZU;2-9
Abstract
We show that the Wigner function corresponding to an electromagnetic h eld in a cavity or a vibronic state of a trapped ion can be directly m easured by means of a simple experimental procedure. The proposed meth od is insensitive to the relatively low detection efficiency in cavity QED experiments and yields a direct physical meaning to the Wigner di stribution.