Phase control of higher-order squeezing of a quantum field

Rui-Hua Xie and Qin Rao

Physica A: Statistical Mechanics and its Applications, 2002, vol. 312, issue 3, 421-430

Abstract: In a recent experiment [Phys. Rev. Lett. 88 (2002) 023601], phase-dependent photon statistics in a cw system has been observed in the mixing of a coherent field with a two-photon source. Their system has the advantage over other atomic transition-based fluorescent systems. In this paper, we examine further the squeezing properties of higher-order quantum fluctuations in one of the quadrature components of the combined field in this system. We demonstrate that efficient and lasting higher-order squeezing effects could be observed with proper choice of the relative phase between the pump and coherent fields. This nonclassical feature is attributed to a constructive two-photon interference. Relationship between the second- and higher-order squeezing of the field is discussed.

Keywords: Squeezed states; Quantum fluctuations; Uncertainty relation; Two-photon interference; Two-photon rate (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:312:y:2002:i:3:p:421-430

DOI: 10.1016/S0378-4371(02)00867-1

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