arXiv:1309.3465 · International Journal of Quantum Information

Quantum-state transfer between atom and macroscopically distinguishable cavity field in Jaynes–Cummings model

Gang Zhang, Guan-Rong Li, Zhi Song

Published Feb 1, 2015• 1 citation

Abstract

We present a scheme for transferring quantum state between atom and cavity field in Jaynes–Cummings model (JC) in the aid of spin-echo-like technique. It is based on the facts that the atom in a cavity can induce the generation of modified coherent states (MCSs), which can be shown to be macroscopically distinguishable, and the anti-commutation relation between the Hamiltonian and the z-component Pauli matrix. We show that this scheme is applicable for a class of cavity field states. The application on two-cavity system provides an alternative scheme for preparation of non-local superpositions of quasi-classical light states. Numerical simulation shows that the proposed schemes are efficient.

DOI: 10.1142/s021974991550001x

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