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Quantum Simulation

Calculation of nonzero-temperature Casimir forces in the time domain

arXiv

Authors: Kai Pan, Alexander P. McCauley, Alejandro W. Rodriguez, M. T. Homer Reid, Jacob K. White, Steven G. Johnson

Year

2010

Paper ID

28909

Status

Preprint

Abstract Read

~2 min

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Abstract

We show how to compute Casimir forces at nonzero temperatures with time-domain electromagnetic simulations, for example using a finite-difference time-domain (FDTD) method. Compared to our previous zero-temperature time-domain method, only a small modification is required, but we explain that some care is required to properly capture the zero-frequency contribution. We validate the method against analytical and numerical frequency-domain calculations, and show a surprising high-temperature disappearance of a non-monotonic behavior previously demonstrated in a piston-like geometry.

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We show how to compute Casimir forces at nonzero temperatures with time-domain electromagnetic simulations, for example using a finite-difference time-domain (FDTD) method.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1011.4727 [2] arXiv https://arxiv.org/abs/1011.4727 [3] Publisher https://arxiv.org/abs/1011.4727

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