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International Journal of Modern Physics B

Generalized Superposition of Two Coherent States and Interference Effects

Regiane Ragi, B. Baseia, Vanderlei Salvador Bagnato

Published Jun 10, 1998• 11 citations
Publisher

Abstract

We introduce a generalized superposition of two coherent states to investigate interference effects between them and their influences upon nonclassical effects. The role played by the involved parameters on each nonclassical effect is shown, including a proposal for generating this state and its application. The present scheme constitutes an unified approach, including various important states studied in the literature.

DOI
10.1142/s0217979298002908

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In this paper, the quantum statistical properties of the superposition state,a｜ β〉+beiφ｜mβeiδ〉,which involves two arbitrary coh erent states, are investigated. The results show that this kind of super-positio n states generally exhibits squeezing effect or anti-bunching effect. The quantu m effects of the superposed state depend on β2 and the amplitude coe fficient m, as well as the changes of the phase difference between two coherent states δ, and the phase difference between two superposition coefficients φ al so plays an important role in squeezing or anti-bunching effects.