A Fluid Analog Model for Boundary Effects in Field Theory

2009/03/16 by L. H. Ford, N. F. Svaiter · 1 citation
Physics and Astronomy · #hep-th #quant-ph

paper · pdf · doi:10.1103/physrevd.80.065034

published as Phys.Rev.D80:065034,2009 · 15 pages, 4 figures

arxiv created 2009/03/16 · arxiv updated 2009/12/01

Abstract

Quantum fluctuations in the density of a fluid with a linear phonon dispersion relation are studied. In particular, we treat the changes in these fluctuations due to non-classical states of phonons and to the presence of boundaries. These effects are analogous to similar effects in relativistic quantum field theory, and we argue that the case of the fluid is a useful analog model for effects in field theory. We further argue that the changes in the mean squared density are in principle observable by light scattering experiments.

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• Boundary effects in classical liquid density fluctuations at finite temperature

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