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Classicality via hydrodynamics in quantum field theory

C. Anastopoulos
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Abstract

Motivated by the consistent histories approach to quantum mechanics, we examine a simple model of hydrodynamic coarse-graining for a scalar field. It consists in averaging the field over spatial regions of size L and constructing the evolution equation for the coarse grained quantities, thus identifying dissipation and noise.

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C. Anastopoulos. 1998-05-19. Classicality via hydrodynamics in quantum field theory. https://arxiv.org/abs/gr-qc/9805074

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