dorsal/arxiv
View SchemaExcited state contribution to the Casimir-Polder force at finite temperature
| Authors | T. N. C. Mendes, C. Farina |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0604032 |
| URL | https://arxiv.org/abs/quant-ph/0604032 |
Abstract
Using the master equation we calculate the contribution of the excited state of a two-level atom to its interacting potential with a perfectly conducting wall at finite temperature. For low temperature, $\hbar \omega_0/k_B T = k_0 \lambda_T\gg 1$, where $\omega_0 = k_0 c$ is the transition frequency of the atom and $\lambda_T$ is the thermal wavelength, we show that this contribution is very small $(\propto e^{-k_0\lambda_T})$. In the opposite limit $(k_0\lambda_T \ll 1)$, however, we show that the expression for the interacting potential, for all relevant distance regimes, becomes exactly the same as that for very short distances $(k_0 z \ll 1)$ and with the field in the vacuum state.
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"abstract": "Using the master equation we calculate the contribution of the excited state\nof a two-level atom to its interacting potential with a perfectly conducting\nwall at finite temperature. For low temperature, $\\hbar \\omega_0/k_B T = k_0\n\\lambda_T\\gg 1$, where $\\omega_0 = k_0 c$ is the transition frequency of the\natom and $\\lambda_T$ is the thermal wavelength, we show that this contribution\nis very small $(\\propto e^{-k_0\\lambda_T})$. In the opposite limit\n$(k_0\\lambda_T \\ll 1)$, however, we show that the expression for the\ninteracting potential, for all relevant distance regimes, becomes exactly the\nsame as that for very short distances $(k_0 z \\ll 1)$ and with the field in the\nvacuum state.",
"arxiv_id": "quant-ph/0604032",
"authors": [
"T. N. C. Mendes",
"C. Farina"
],
"categories": [
"quant-ph"
],
"title": "Excited state contribution to the Casimir-Polder force at finite temperature",
"url": "https://arxiv.org/abs/quant-ph/0604032"
},
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