Details
| Original language | English |
|---|---|
| Pages (from-to) | 4107-4129 |
| Number of pages | 23 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 33 |
| Issue number | 19 |
| Publication status | Published - 14 Oct 2000 |
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, sympathetic 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 with 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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 33, No. 19, 14.10.2000, p. 4107-4129.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Cooling of a small sample of Bose atoms with accidental degeneracy
AU - Lewenstein, Maciej
AU - Cirac, Ignacio J.
AU - Santos, Luis
PY - 2000/10/14
Y1 - 2000/10/14
N2 - 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, sympathetic 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 with 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.
AB - 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, sympathetic 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 with 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.
UR - http://www.scopus.com/inward/record.url?scp=0034297433&partnerID=8YFLogxK
U2 - 10.1088/0953-4075/33/19/321
DO - 10.1088/0953-4075/33/19/321
M3 - Article
AN - SCOPUS:0034297433
VL - 33
SP - 4107
EP - 4129
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
SN - 0953-4075
IS - 19
ER -