dorsal/arxiv
View SchemaRelaxation and dephasing in a many-fermion generalization of the Caldeira-Leggett model
| Authors | Florian Marquardt, D. S. Golubev |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0305098 |
| URL | https://arxiv.org/abs/quant-ph/0305098 |
| DOI | 10.1103/PhysRevLett.93.130404 |
| Journal | Phys. Rev. Lett. 93, 130404 (2004) |
Abstract
We analyze a model system of fermions in a harmonic oscillator potential under the influence of a fluctuating force generated by a bath of harmonic oscillators. This represents an extension of the well-known Caldeira-Leggett model to the case of many fermions. Using the method of bosonization, we calculate Green's functions and discuss relaxation and dephasing of a single extra particle added above the Fermi sea. We also extend our analysis to a more generic coupling between system and bath, that results in complete thermalization of the system.
{
"annotation_id": "478b44cf-db74-4415-b0c7-e273665a2e84",
"date_created": "2026-03-02T18:01:59.817000Z",
"date_modified": "2026-03-02T18:01:59.817000Z",
"file_hash": "ec0780c582f1c2a8b5b69864a644e5ecfc412601b9b7e74aaef72ef65891be83",
"private": false,
"record": {
"abstract": "We analyze a model system of fermions in a harmonic oscillator potential\nunder the influence of a fluctuating force generated by a bath of harmonic\noscillators. This represents an extension of the well-known Caldeira-Leggett\nmodel to the case of many fermions. Using the method of bosonization, we\ncalculate Green\u0027s functions and discuss relaxation and dephasing of a single\nextra particle added above the Fermi sea. We also extend our analysis to a more\ngeneric coupling between system and bath, that results in complete\nthermalization of the system.",
"arxiv_id": "quant-ph/0305098",
"authors": [
"Florian Marquardt",
"D. S. Golubev"
],
"categories": [
"quant-ph",
"cond-mat.str-el"
],
"doi": "10.1103/PhysRevLett.93.130404",
"journal_ref": "Phys. Rev. Lett. 93, 130404 (2004)",
"title": "Relaxation and dephasing in a many-fermion generalization of the Caldeira-Leggett model",
"url": "https://arxiv.org/abs/quant-ph/0305098"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "2589de6b-4217-4ee3-a4ab-5e28d440f678",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}