dorsal/arxiv
View SchemaElectron Entanglement via a Quantum Dot
| Authors | William D. Oliver, F. Yamaguchi, Y. Yamamoto |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0107084 |
| URL | https://arxiv.org/abs/quant-ph/0107084 |
| DOI | 10.1103/PhysRevLett.88.037901 |
| Journal | PHYS REV LETT 88 (3): Art. No. 037901 JAN 21 2002 |
Abstract
This Letter presents a method of electron entanglement generation. The system under consideration is a single-level quantum dot with one input and two output leads. The leads are arranged such that the dot is empty, single electron tunneling is suppressed by energy conservation, and two-electron virtual co-tunneling is allowed. This yields a pure, non-local spin-singlet state at the output leads. Coulomb interaction is the nonlinearity essential for entanglement generation, and, in its absence, the singlet state vanishes. This type of electron entanglement is a four-wave mixing process analogous to the photon entanglement generated by a Chi-3 parametric amplifier.
{
"annotation_id": "2926e701-ce85-4586-aee6-af784f18b189",
"date_created": "2026-03-02T18:01:46.074000Z",
"date_modified": "2026-03-02T18:01:46.074000Z",
"file_hash": "b5e304c872d6060e17b6d2580f96c7b52925e2676b7340a53d8c1f58ebfa929f",
"private": false,
"record": {
"abstract": "This Letter presents a method of electron entanglement generation. The system\nunder consideration is a single-level quantum dot with one input and two output\nleads. The leads are arranged such that the dot is empty, single electron\ntunneling is suppressed by energy conservation, and two-electron virtual\nco-tunneling is allowed. This yields a pure, non-local spin-singlet state at\nthe output leads. Coulomb interaction is the nonlinearity essential for\nentanglement generation, and, in its absence, the singlet state vanishes. This\ntype of electron entanglement is a four-wave mixing process analogous to the\nphoton entanglement generated by a Chi-3 parametric amplifier.",
"arxiv_id": "quant-ph/0107084",
"authors": [
"William D. Oliver",
"F. Yamaguchi",
"Y. Yamamoto"
],
"categories": [
"quant-ph",
"cond-mat.mes-hall"
],
"doi": "10.1103/PhysRevLett.88.037901",
"journal_ref": "PHYS REV LETT 88 (3): Art. No. 037901 JAN 21 2002",
"title": "Electron Entanglement via a Quantum Dot",
"url": "https://arxiv.org/abs/quant-ph/0107084"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "97df554c-c253-49d9-b553-5b74c9bc7cca",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}