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Cavity Field Reconstruction at Finite Temperature

H. M. Moya-Cessa, A. Vidiella-Barranco, P. Tombesi, Roversi, J A

Published Jan 1, 2000• 1 citation
OpenAlex

Abstract

We present a scheme to reconstruct the quantum state of a field preparedinside a lossy cavity at finite temperature. Quantum coherences are normallydestroyed by the interaction with an environment, but we show that it ispossible to recover complete information about the initial state (beforeinteraction with its environment), making possible to reconstruct any$s$-parametrized quasiprobability distribution, in particular, the Wignerfunction.

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We present a scheme to reconstruct the quantum state of a field preparedinside a lossy cavity at finite temperature. Quantum coherences are normallydestroyed by the interaction with an environment, but we show that it ispossible to recover complete information about the initial state (beforeinteraction with its environment), making possible to reconstruct anysss-parametrized quasiprobability distribution, in particular, the Wignerfunction.