SU(2) coherent states in parametric down-conversion
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1996
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American Physical Society
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Abstract
The states generated from the vacuum in two parametric down-conversion crystals with aligned idler beams are studied. It is shown that after a measurement of the photon number in some of the modes, the emerging states can be related to SU(2) and SU(1,1) coherent acid minimum-uncertainty states.
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© 1996 The American Physical Society. We would like to thank Professor V. Peřinová and Dr. A. Lukš for carefully reading the manuscript. A.L. also acknowledges the support of a grant from the Ministerio Español de Educación y Ciencia and the kind hospitality from the Optics Department of the Palacký University.