Phys. Rev. A 68, 023802 (2003) [4 pages]Direct measurement of quasiprobability distributions in cavity QEDReceived 13 November 2002; published 6 August 2003 We show that the set of s-parametrized quasiprobability distribution functions corresponding to an electromagnetic field in a cavity subject to dissipation can be directly measured. Such distributions contain whole information of the quantum state, therefore making it possible to recover information after losses have occurred. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.023802
DOI:
10.1103/PhysRevA.68.023802
PACS:
42.50.Pq, 42.50.Dv, 03.65.Ta
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