dorsal/arxiv
View SchemaPhase-covariant quantum cloning of qudits
| Authors | Heng Fan, Hiroshi Imai, Keiji Matsumoto, Xiang-Bin Wang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0205126 |
| URL | https://arxiv.org/abs/quant-ph/0205126 |
| DOI | 10.1103/PhysRevA.67.022317 |
| Journal | Phys.Rev.A67,022317 (2003) |
Abstract
We study the phase-covariant quantum cloning machine for qudits, i.e. the input states in d-level quantum system have complex coefficients with arbitrary phase but constant module. A cloning unitary transformation is proposed. After optimizing the fidelity between input state and single qudit reduced density opertor of output state, we obtain the optimal fidelity for 1 to 2 phase-covariant quantum cloning of qudits and the corresponding cloning transformation.
{
"annotation_id": "a2d6e261-e679-4178-973c-156901c13e20",
"date_created": "2026-03-02T18:01:51.780000Z",
"date_modified": "2026-03-02T18:01:51.780000Z",
"file_hash": "ec84322a482bd09be03dc05a75338a4269bd4d6abe4ea67e8ca6723f1bdb5184",
"private": false,
"record": {
"abstract": "We study the phase-covariant quantum cloning machine for qudits, i.e. the\ninput states in d-level quantum system have complex coefficients with arbitrary\nphase but constant module. A cloning unitary transformation is proposed. After\noptimizing the fidelity between input state and single qudit reduced density\nopertor of output state, we obtain the optimal fidelity for 1 to 2\nphase-covariant quantum cloning of qudits and the corresponding cloning\ntransformation.",
"arxiv_id": "quant-ph/0205126",
"authors": [
"Heng Fan",
"Hiroshi Imai",
"Keiji Matsumoto",
"Xiang-Bin Wang"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.67.022317",
"journal_ref": "Phys.Rev.A67,022317 (2003)",
"title": "Phase-covariant quantum cloning of qudits",
"url": "https://arxiv.org/abs/quant-ph/0205126"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "296590cb-1468-41ef-a868-06b7175fa8b4",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}