Characteristic Time and Maximum Mixedness: Single Mode Gaussian States in Dissipative Channels

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We derive an upper limit for the mixedness of single bosonic mode gaussian states propagating in dissipative channels. It is a function of the initial squeezing and temperature of the channel only. Moreover the time at which von Neumann's entropy reaches its maximum value coincides with that of complete loss of coherence, thus defining a quantum-classical transition.
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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/166471

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.4271
 http://arxiv.org/abs/0706.4271
 Physics Letters A, 372 (2008) 3616.
 doi:10.1016/j.physleta.2008.02.040

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