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Nonclassical state via superposition of two coherent states (π/2 out of phase) and related entangled states

✍ Scribed by Ran Zeng; Muhammad Ashfaq Ahmad; Shutian Liu

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 448 KB
Volume: 271
Category: Article
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2006.10.032

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✦ Synopsis

Nonclassical features of the superposition of two coherent states which are p/2 out of phase are discussed, such as sub-Poissonian photon statistics and quadrature squeezing, as well as negativity of the Wigner function. Special nonclassicality is found in the special state where the relative phase of superposition has relationship with the average photon number. The analysis of the amount of entanglement is also presented for the related two-mode entangled coherent states.

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