Energy Flux Correlations and Moving Mirrors

Details Energy Flux Correlations and Moving Mirrors Energy Flux Correlations and Moving Mirrors

2004-09-24

arxiv.org/abs/gr-qc/0409093v1

Phys.Rev. D70 (2004) 125008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages, 6 figures

Scientific paper

10.1103/PhysRevD.70.125008

We study the quantum stress tensor correlation function for a massless scalar field in a flat two-dimensional spacetime containing a moving mirror. We construct the correlation functions for right-moving and left-moving fluxes for an arbitrary trajectory, and then specialize them to the case of a mirror trajectory for which the expectation value of the stress tensor describes a pair of delta-function pulses, one of negative energy and one of positive energy. The flux correlation function describes the fluctuations around this mean stress tensor, and reveals subtle changes in the correlations between regions where the mean flux vanishes.

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