NONCLASSICAL PROPERTIES OF PHOTON-ADDED PAIR COHERENT STATES
LU HONG (路洪)a, GUO GUANG-CAN (郭光灿)b
a Department of Applied Physics and Communication Engineering,University of Science and Technology of Foshan 528000,China; b Department of Physics and Nonlinear Science Center, University of Science and Technology of China, Hefei 230026,China
Abstract The two-mode photon-added state defined by |$\zeta$,q;m>=a+mb+m|$\zeta$,q> up to a normalization constant is introduced, where |$\zeta$,q> is a pair coherent state and m an integer. It is shown that the fields in such a state have remarkable quantum features such as sub-Poissonian statistics, violations of Cauch-Schwarz inequalities, correlations in the number fluctuations and squeezing. We examine the influence of photon-adding on the properties of pair coherent of cavity quantum electrodynamics.
Received: 08 January 1999
Accepted manuscript online:
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