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arXiv · 1905.02647

A quantum Boltzmann equation for intrinsic decoherence in a dilute gas

L. Rico-Pérez·J. R. Anglin
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Abstract

We use a careful treatment of time-dependent wave-mechanical scattering to determine the conditions under which a dilute, non-degenerate quantum gas can obey a Boltzmann equation. If the gas possesses weak long-range coherence, such as may occur when a gas is quantum mechanically throttled by tunnelling through a barrier, collisions within the gas will suppress this long range coherence. We calculate its decay rate and find it to be related to the Boltzmann equation's loss term.

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L. Rico-Pérez, J. R. Anglin. 2019-05-07. A quantum Boltzmann equation for intrinsic decoherence in a dilute gas. https://arxiv.org/abs/1905.02647

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