dorsal/arxiv
View SchemaIncoherent dynamics in neutron-matter interaction
| Authors | L. Lanz, B. Vacchini |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9709024 |
| URL | https://arxiv.org/abs/quant-ph/9709024 |
| DOI | 10.1103/PhysRevA.56.4826 |
| Journal | Phys.Rev.A56:4826-4838,1997 |
Abstract
Coherent and incoherent neutron-matter interaction is studied inside a recently introduced approach to subdynamics of a macrosystem. The equation describing the interaction is of the Lindblad type and using the Fermi pseudopotential we show that the commutator term is an optical potential leading to well-known relations in neutron optics. The other terms, usually ignored in optical descriptions and linked to the dynamic structure function of the medium, give an incoherent contribution to the dynamics, which keeps diffuse scattering and attenuation of the coherent beam into account, thus warranting fulfilment of the optical theorem. The relevance of this analysis to experiments in neutron interferometry is briefly discussed.
{
"annotation_id": "c53cd905-66e6-4777-9196-fbfb563070ee",
"date_created": "2026-03-02T18:02:41.369000Z",
"date_modified": "2026-03-02T18:02:41.369000Z",
"file_hash": "2919e8b6de20fcb6e3985b04bf6c6ac572073aac6403bb6faa54f8bef0a2176e",
"private": false,
"record": {
"abstract": "Coherent and incoherent neutron-matter interaction is studied inside a\nrecently introduced approach to subdynamics of a macrosystem. The equation\ndescribing the interaction is of the Lindblad type and using the Fermi\npseudopotential we show that the commutator term is an optical potential\nleading to well-known relations in neutron optics. The other terms, usually\nignored in optical descriptions and linked to the dynamic structure function of\nthe medium, give an incoherent contribution to the dynamics, which keeps\ndiffuse scattering and attenuation of the coherent beam into account, thus\nwarranting fulfilment of the optical theorem. The relevance of this analysis to\nexperiments in neutron interferometry is briefly discussed.",
"arxiv_id": "quant-ph/9709024",
"authors": [
"L. Lanz",
"B. Vacchini"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.56.4826",
"journal_ref": "Phys.Rev.A56:4826-4838,1997",
"title": "Incoherent dynamics in neutron-matter interaction",
"url": "https://arxiv.org/abs/quant-ph/9709024"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "8db380c5-3984-45c8-b101-6a98b954dc6a",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}