dorsal/arxiv
View SchemaOptimal local discrimination of two multipartite pure states
| Authors | S. Virmani, M. F. Sacchi, M. B. Plenio, D. Markham |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0102073 |
| URL | https://arxiv.org/abs/quant-ph/0102073 |
| DOI | 10.1016/S0375-9601(01)00484-4 |
| Journal | Phys. Lett. A. 288, p.62 (2001) |
Abstract
In a recent paper, Walgate et. al. demonstrated that any two orthogonal multipartite pure states can be optimally distinguished using only local operations. We utilise their result to show that this is true for any two multiparty pure states, in the sense of inconclusive discrimination. There are also certain regimes of conclusive discrimination for which the same also applies, although we can only conjecture that the result is true for all conclusive regimes. We also discuss a class of states that can be distinguished locally according to any discrimination measure, as they can be locally recreated in the hands of one party. A consequence of this is that any two maximally entangled states can always be optimally discriminated locally, according to any figure of merit.
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"abstract": "In a recent paper, Walgate et. al. demonstrated that any two orthogonal\nmultipartite pure states can be optimally distinguished using only local\noperations. We utilise their result to show that this is true for any two\nmultiparty pure states, in the sense of inconclusive discrimination. There are\nalso certain regimes of conclusive discrimination for which the same also\napplies, although we can only conjecture that the result is true for all\nconclusive regimes. We also discuss a class of states that can be distinguished\nlocally according to any discrimination measure, as they can be locally\nrecreated in the hands of one party. A consequence of this is that any two\nmaximally entangled states can always be optimally discriminated locally,\naccording to any figure of merit.",
"arxiv_id": "quant-ph/0102073",
"authors": [
"S. Virmani",
"M. F. Sacchi",
"M. B. Plenio",
"D. Markham"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/S0375-9601(01)00484-4",
"journal_ref": "Phys. Lett. A. 288, p.62 (2001)",
"title": "Optimal local discrimination of two multipartite pure states",
"url": "https://arxiv.org/abs/quant-ph/0102073"
},
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