dorsal/arxiv
View SchemaMultipartite Asymmetric Quantum Cloning
| Authors | S. Iblisdir, A. Acin, N. Gisin, J. Fiurasek, R. Filip, N. J. Cerf |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0411179 |
| URL | https://arxiv.org/abs/quant-ph/0411179 |
| DOI | 10.1103/PhysRevA.72.042328 |
| Journal | Phys. Rev. A 72, 042328 (2005) |
Abstract
We investigate the optimal distribution of quantum information over multipartite systems in asymmetric settings. We introduce cloning transformations that take $N$ identical replicas of a pure state in any dimension as input, and yield a collection of clones with non-identical fidelities. As an example, if the clones are partitioned into a set of $M_A$ clones with fidelity $F^A$ and another set of $M_B$ clones with fidelity $F^B$, the trade-off between these fidelities is analyzed, and particular cases of optimal $N \to M_A+M_B$ cloning machines are exhibited. We also present an optimal $1 \to 1+1+1$ cloning machine, which is the first known example of a tripartite fully asymmetric cloner. Finally, it is shown how these cloning machines can be optically realized.
{
"annotation_id": "bc131d92-7833-4766-b5ac-29cb7a97ec38",
"date_created": "2026-03-02T18:02:13.794000Z",
"date_modified": "2026-03-02T18:02:13.794000Z",
"file_hash": "7808c1d02a004fc058895eeb117157dc07e6042d390ee1e788460d05d90a962e",
"private": false,
"record": {
"abstract": "We investigate the optimal distribution of quantum information over\nmultipartite systems in asymmetric settings. We introduce cloning\ntransformations that take $N$ identical replicas of a pure state in any\ndimension as input, and yield a collection of clones with non-identical\nfidelities. As an example, if the clones are partitioned into a set of $M_A$\nclones with fidelity $F^A$ and another set of $M_B$ clones with fidelity $F^B$,\nthe trade-off between these fidelities is analyzed, and particular cases of\noptimal $N \\to M_A+M_B$ cloning machines are exhibited. We also present an\noptimal $1 \\to 1+1+1$ cloning machine, which is the first known example of a\ntripartite fully asymmetric cloner. Finally, it is shown how these cloning\nmachines can be optically realized.",
"arxiv_id": "quant-ph/0411179",
"authors": [
"S. Iblisdir",
"A. Acin",
"N. Gisin",
"J. Fiurasek",
"R. Filip",
"N. J. Cerf"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.72.042328",
"journal_ref": "Phys. Rev. A 72, 042328 (2005)",
"title": "Multipartite Asymmetric Quantum Cloning",
"url": "https://arxiv.org/abs/quant-ph/0411179"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "10e49243-2353-485b-83b9-15876c457ed4",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}