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Optics Communications

A method for generating Schrödinger cat states with controllable components

Shi-Biao Zheng, Guang‐Can Guo

Published Jun 1, 1997• 1 citation
Publisher
DOI
10.1016/s0030-4018(97)00078-3

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The generation of Schr\"odinger-cat-like states for quantum fundamental solitons in optical fibers is investigated. It is shown that the generation is possible at proper times in the dynamical evolution of an appropriately chosen initial state. Such a Schr\"odinger-cat-like state has a minimum number of components, three, and the superposition coefficients of components are all real. Mean values of the field and the intensity operators are calculated and the associated quantum interference behavior characteristic of quantum coherent superposition in the Schr\"odinger-cat-like states is revealed. The effect of dissipation on the Schr\"odinger-cat-like states is analyzed using a beam splitter. The severity with which losses tend to destroy interference between components of the input Schr\"odinger-cat-like state is noted.