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Physical Review A

Comment on ‘‘Higher-order squeezing from an anharmonic oscillator’’

R. Tanaś

Published Jul 1, 1988• 14 citations
Publisher

Abstract

In this Comment certain questions of higher-order and intrinsic higher-order squeezing from an anharmonic oscillator recently discussed by Gerry and Rodrigues [Phys. Rev. A 35, 4440 (1987)] are clarified.
DOI
10.1103/physreva.38.1091

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We discuss a recently proposed method [R. J\'auregui and J. R\'ecamier, Phys. Rev. A 46, 2240 (1992)] based on the application of iterative Bogoliubov transformations to anharmonic oscillators and show that, if the algorithm converges, one easily obtains the final result directly in one step. We prove that the Bogoliubov transformation can be written in terms of scaling and translation parameters and present exact results for the coefficients of the Bogoliubov transformation for some selected examples.