dorsal/arxiv
View SchemaObservation of off-diagonal geometric phase in polarized neutron interferometer experiments
| Authors | Y. Hasegawa, R. Loidl, G. Badurek, M. Baron, N. Manini, F. Pistolesi, H. Rauch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0201054 |
| URL | https://arxiv.org/abs/quant-ph/0201054 |
| DOI | 10.1103/PhysRevA.65.052111 |
| Journal | Phys. Rev. A 65, 052111 (2002) |
Abstract
Off-diagonal geometric phases acquired in the evolution of a spin-1/2 system have been investigated by means of a polarized neutron interferometer. Final counts with and without polarization analysis enable us to observe simultaneously the off-diagonal and diagonal geometric phases in two detectors. We have quantitatively measured the off-diagonal geometric phase for noncyclic evolutions, confirming the theoretical predictions. We discuss the significance of our experiment in terms of geometric phases (both diagonal and off-diagonal) and in terms of the quantum erasing phenomenon.
{
"annotation_id": "d79d5df1-dfd4-4d71-ba15-6dab71849e7d",
"date_created": "2026-03-02T18:01:49.557000Z",
"date_modified": "2026-03-02T18:01:49.557000Z",
"file_hash": "6098e9ef203991f8b1c5ebd676cc0d20e8c554efb7a8b4c6fd6576b888fa6c18",
"private": false,
"record": {
"abstract": "Off-diagonal geometric phases acquired in the evolution of a spin-1/2 system\nhave been investigated by means of a polarized neutron interferometer. Final\ncounts with and without polarization analysis enable us to observe\nsimultaneously the off-diagonal and diagonal geometric phases in two detectors.\nWe have quantitatively measured the off-diagonal geometric phase for noncyclic\nevolutions, confirming the theoretical predictions. We discuss the significance\nof our experiment in terms of geometric phases (both diagonal and off-diagonal)\nand in terms of the quantum erasing phenomenon.",
"arxiv_id": "quant-ph/0201054",
"authors": [
"Y. Hasegawa",
"R. Loidl",
"G. Badurek",
"M. Baron",
"N. Manini",
"F. Pistolesi",
"H. Rauch"
],
"categories": [
"quant-ph",
"cond-mat"
],
"doi": "10.1103/PhysRevA.65.052111",
"journal_ref": "Phys. Rev. A 65, 052111 (2002)",
"title": "Observation of off-diagonal geometric phase in polarized neutron interferometer experiments",
"url": "https://arxiv.org/abs/quant-ph/0201054"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "d9788384-57f2-493c-8051-6c39555a752b",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}