dorsal/arxiv
View SchemaGeneration of bipartite spin entanglement via spin-independent scattering
| Authors | Lucas Lamata, Juan Leon |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0602090 |
| URL | https://arxiv.org/abs/quant-ph/0602090 |
| DOI | 10.1103/PhysRevA.73.052322 |
| Journal | Phys. Rev. A 73, 052322 (2006) |
Abstract
We consider the bipartite spin entanglement between two identical fermions generated in spin-independent scattering. We show how the spatial degrees of freedom act as ancillas for the creation of entanglement to a degree that depends on the scattering angle, $\theta$. The number of Slater determinants generated in the process is greater than 1, corresponding to genuine quantum correlations between the identical fermions. The maximal entanglement attainable of 1 ebit is reached at $\theta=\pi/2$. We also analyze a simple $\theta$ dependent Bell's inequality, which is violated for $\pi/4<\theta\leq\pi/2$. This phenomenon is unrelated to the symmetrization postulate but does not appear for unequal particles.
{
"annotation_id": "167d27ef-f925-40f9-9672-edf45cf37295",
"date_created": "2026-03-02T18:02:23.220000Z",
"date_modified": "2026-03-02T18:02:23.220000Z",
"file_hash": "2ed93d3cb418107c9e0fa3069094863b3230ca03a7195bd32041859a4821a316",
"private": false,
"record": {
"abstract": "We consider the bipartite spin entanglement between two identical fermions\ngenerated in spin-independent scattering. We show how the spatial degrees of\nfreedom act as ancillas for the creation of entanglement to a degree that\ndepends on the scattering angle, $\\theta$. The number of Slater determinants\ngenerated in the process is greater than 1, corresponding to genuine quantum\ncorrelations between the identical fermions. The maximal entanglement\nattainable of 1 ebit is reached at $\\theta=\\pi/2$. We also analyze a simple\n$\\theta$ dependent Bell\u0027s inequality, which is violated for\n$\\pi/4\u003c\\theta\\leq\\pi/2$. This phenomenon is unrelated to the symmetrization\npostulate but does not appear for unequal particles.",
"arxiv_id": "quant-ph/0602090",
"authors": [
"Lucas Lamata",
"Juan Leon"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.73.052322",
"journal_ref": "Phys. Rev. A 73, 052322 (2006)",
"title": "Generation of bipartite spin entanglement via spin-independent scattering",
"url": "https://arxiv.org/abs/quant-ph/0602090"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "2f070842-6f7b-4e5a-9750-f7f29f9f5755",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}