Phys. Rev. A 71, 043823 (2005) [6 pages]Generation of a superposition of multiple mesoscopic states of radiation in a resonant cavityReceived 2 December 2004; published 27 April 2005 Using resonant interaction between atoms and the field in a high-quality cavity, we show how to generate a superposition of many mesoscopic states of the field. We study the quasiprobability distributions and demonstrate the nonclassicality of the superposition in terms of the zeros of the Q function as well as the negativity of the Wigner function. We discuss the decoherence of the generated superposition state. We propose homodyne techniques of the type developed by [ Auffeves et al. Phys. Rev. Lett. 91 230405 (2003)] to monitor the superposition of many mesoscopic states. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.71.043823
DOI:
10.1103/PhysRevA.71.043823
PACS:
42.50.Gy, 32.80.Qk
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