Calculation of nonzero-temperature Casimir forces in the time domain
| Autor: | Pan, Kai, McCauley, Alexander P., Rodriguez, Alejandro W., Reid, M. T. Homer, White, Jacob K., Johnson, Steven G. |
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| Rok vydání: | 2010 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.83.040503 |
| Popis: | 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. Comment: 5 pages, 2 figures, submitted to Physical Review A Rapid Communication |
| Databáze: | arXiv |
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