Generating Schrödinger-cat-like states by means of conditional measurements on a beam splitter
- 1 April 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 55 (4) , 3184-3194
- https://doi.org/10.1103/physreva.55.3184
Abstract
A scheme for generating Schrödinger-cat-like states of a single-mode optical field by means of conditional measurement is proposed. Feeding a squeezed vacuum into a beam splitter and counting the photons in one of the output channels, the conditional states in the other output channel exhibit a number of properties that are very similar to those of superpositions of two coherent states with opposite phases. We present analytical and numerical results for the photon-number and quadrature-component distributions of the conditional states and their Wigner and Husimi functions. Further, we discuss the effect of realistic photocounting on the states.Keywords
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