Decoherence of nonrelativistic bosonic quantum fields
arXiv:1904.11811 · doi:10.1103/PhysRevA.99.060103
Abstract
We present a generic Markovian master equation inducing the gradual classicalization of a bosonic quantum field. It leads to the decoherence of quantum superpositions of field configurations, while leaving the Ehrenfest equations for both the field and the mode-variables invariant. We characterize the classicalization analytically and numerically, and show that the semiclassical field dynamics is described by a linear Boltzmann equation in the functional phase space of field configurations.
arXiv commentPublished version
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