dorsal/arxiv
View SchemaCooling of a small sample of Bose atoms with accidental degeneracy
| Authors | M. Lewenstein, J. I. Cirac, L. Santos |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0005097 |
| URL | https://arxiv.org/abs/quant-ph/0005097 |
| DOI | 10.1088/0953-4075/33/19/321 |
Abstract
A system of bosons in a harmonic trap is cooled via their interactions with a thermal reservoir. We derive the master equation that governs the evolution of the system and may describe diverse physical situations: laser cooling, symphatetic cooling, etc. We investigate in detail the dynamics of the gas in the Lamb-Dicke limit, whereby the size of the trap is small in comparison to the de Broglie wavelength of the reservoir quanta. In this case, the dynamics is characterized by two time scales. First, an equilibrium is reached on a fast time scale within the degenerated subspaces of the system. Then, an equilibrium between these subspaces is reached on a slow time scale.
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"abstract": "A system of bosons in a harmonic trap is cooled via their interactions with a\nthermal reservoir. We derive the master equation that governs the evolution of\nthe system and may describe diverse physical situations: laser cooling,\nsymphatetic cooling, etc. We investigate in detail the dynamics of the gas in\nthe Lamb-Dicke limit, whereby the size of the trap is small in comparison to\nthe de Broglie wavelength of the reservoir quanta. In this case, the dynamics\nis characterized by two time scales. First, an equilibrium is reached on a fast\ntime scale within the degenerated subspaces of the system. Then, an equilibrium\nbetween these subspaces is reached on a slow time scale.",
"arxiv_id": "quant-ph/0005097",
"authors": [
"M. Lewenstein",
"J. I. Cirac",
"L. Santos"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0953-4075/33/19/321",
"title": "Cooling of a small sample of Bose atoms with accidental degeneracy",
"url": "https://arxiv.org/abs/quant-ph/0005097"
},
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