This article is cited in 45 papers

NONLINEAR DYNAMICS

Entangled photon states in consecutive nonlinear optical interactions

A. V. Rodionov, A. S. Chirkin

M. V. Lomonosov Moscow State University, Faculty of Physics

Abstract: Quantum theory of two consecutive light-wave parametric interactions with aliquant frequencies produced by a common pump wave in a crystal is developed. Using the differentiation method, the unitary evolution operator of the system is reduced to an ordered form that allows the calculation of the field state and the statistical characteristics of interacting waves. It is shown that, for the initial vacuum field state, the created photons obey the super-Poisson statistics at the interacting frequencies and are in a multiparticle entangled state.

PACS: 03.67.Mn, 42.50.Dv, 42.65.Ky

Received: 27.01.2004

 English version: Journal of Experimental and Theoretical Physics Letters, 2004, 79:6, 253–256

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