Decoherence of nonrelativistic bosonic quantum fields

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.

Published version

References in corpus (5)

• Strongly Correlated Quantum Walks in Optical Lattices
• Testing the limits of quantum mechanical superpositions
• Quantum back-action evading measurement of collective mechanical modes
• Cavity Optomechanics in a Levitated Helium Drop
• Measurement master equation