dorsal/arxiv
View SchemaDecoherence-induced geometric phase in a multilevel atomic system
| Authors | Shubhrangshu Dasgupta, Daniel A. Lidar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0612201 |
| URL | https://arxiv.org/abs/quant-ph/0612201 |
| DOI | 10.1088/0953-4075/40/9/S07 |
| Journal | J. Phys. B 40, S127 (2007) (special issue on "Dynamical Control of Entanglement and Decoherence by Field-Matter Interactions") |
Abstract
We consider the STIRAP process in a three-level atom. Viewed as a closed system, no geometric phase is acquired. But in the presence of spontaneous emission and/or collisional relaxation we show numerically that a non-vanishing, purely real, geometric phase is acquired during STIRAP, whose magnitude grows with the decay rates. Rather than viewing this decoherence-induced geometric phase as a nuisance, it can be considered an example of "beneficial decoherence": the environment provides a mechanism for the generation of geometric phases which would otherwise require an extra experimental control knob.
{
"annotation_id": "901c7a7a-ff20-48f3-a299-2f7157e20150",
"date_created": "2026-03-02T18:02:34.379000Z",
"date_modified": "2026-03-02T18:02:34.379000Z",
"file_hash": "49fcce3671853ba3375920572ee3d5f580718fe179b3dcc99c1357f7c84a6323",
"private": false,
"record": {
"abstract": "We consider the STIRAP process in a three-level atom. Viewed as a closed\nsystem, no geometric phase is acquired. But in the presence of spontaneous\nemission and/or collisional relaxation we show numerically that a\nnon-vanishing, purely real, geometric phase is acquired during STIRAP, whose\nmagnitude grows with the decay rates. Rather than viewing this\ndecoherence-induced geometric phase as a nuisance, it can be considered an\nexample of \"beneficial decoherence\": the environment provides a mechanism for\nthe generation of geometric phases which would otherwise require an extra\nexperimental control knob.",
"arxiv_id": "quant-ph/0612201",
"authors": [
"Shubhrangshu Dasgupta",
"Daniel A. Lidar"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0953-4075/40/9/S07",
"journal_ref": "J. Phys. B 40, S127 (2007) (special issue on \"Dynamical Control of\n Entanglement and Decoherence by Field-Matter Interactions\")",
"title": "Decoherence-induced geometric phase in a multilevel atomic system",
"url": "https://arxiv.org/abs/quant-ph/0612201"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "829a62f6-c474-462b-a824-5b12d634cda8",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}