dorsal/arxiv
View SchemaDipole-dipole instability of atom clouds in a far-detuned optical dipole trap
| Authors | D. Nagy, P. Domokos |
|---|---|
| Categories | |
| ArXiv ID | physics/0611280 |
| URL | https://arxiv.org/abs/physics/0611280 |
| DOI | 10.1103/PhysRevA.75.053416 |
Abstract
The effect of the dipole-dipole interaction on the far-off-resonance optical dipole trapping scheme is calculated by a mean-field approach. The trapping laser field polarizes the atoms and the accompanying dipole-dipole energy shift deepens the attractive potential minimum in a pancake-shaped cloud. At high density the thermal motion cannot stabilize the gas against self-contraction and an instability occurs. We calculate the boundary of the stable and unstable equilibrium regions on a two-dimensional phase diagram of the atom number and the ratio of the trap depth to the temperature. We discuss the limitations imposed by the dipole-dipole instability on the parameters needed to reach Bose-Einstein condensation in an optical dipole trap.
{
"annotation_id": "7fb4e7cc-81e9-466a-87db-0c3e91612bad",
"date_created": "2026-03-02T18:01:14.930000Z",
"date_modified": "2026-03-02T18:01:14.930000Z",
"file_hash": "7b32e4e90270b2d6b05cb4b020889e3dee244aa421204392d144824fc62e0532",
"private": false,
"record": {
"abstract": "The effect of the dipole-dipole interaction on the far-off-resonance optical\ndipole trapping scheme is calculated by a mean-field approach. The trapping\nlaser field polarizes the atoms and the accompanying dipole-dipole energy shift\ndeepens the attractive potential minimum in a pancake-shaped cloud. At high\ndensity the thermal motion cannot stabilize the gas against self-contraction\nand an instability occurs. We calculate the boundary of the stable and unstable\nequilibrium regions on a two-dimensional phase diagram of the atom number and\nthe ratio of the trap depth to the temperature. We discuss the limitations\nimposed by the dipole-dipole instability on the parameters needed to reach\nBose-Einstein condensation in an optical dipole trap.",
"arxiv_id": "physics/0611280",
"authors": [
"D. Nagy",
"P. Domokos"
],
"categories": [
"physics.atom-ph",
"physics.optics"
],
"doi": "10.1103/PhysRevA.75.053416",
"title": "Dipole-dipole instability of atom clouds in a far-detuned optical dipole trap",
"url": "https://arxiv.org/abs/physics/0611280"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "0646cb2c-8f46-472c-a765-e4ca1cafe0bd",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}