dorsal/arxiv
View SchemaA de Finetti representation for finite symmetric quantum states
| Authors | Robert Koenig, Renato Renner |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0410229 |
| URL | https://arxiv.org/abs/quant-ph/0410229 |
| DOI | 10.1063/1.2146188 |
| Journal | J. Math. Phys. 46, 122108 (2005) |
Abstract
Consider a symmetric quantum state on an n-fold product space, that is, the state is invariant under permutations of the n subsystems. We show that, conditioned on the outcomes of an informationally complete measurement applied to a number of subsystems, the state in the remaining subsystems is close to having product form. This immediately generalizes the so-called de Finetti representation to the case of finite symmetric quantum states.
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"abstract": "Consider a symmetric quantum state on an n-fold product space, that is, the\nstate is invariant under permutations of the n subsystems. We show that,\nconditioned on the outcomes of an informationally complete measurement applied\nto a number of subsystems, the state in the remaining subsystems is close to\nhaving product form. This immediately generalizes the so-called de Finetti\nrepresentation to the case of finite symmetric quantum states.",
"arxiv_id": "quant-ph/0410229",
"authors": [
"Robert Koenig",
"Renato Renner"
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"doi": "10.1063/1.2146188",
"journal_ref": "J. Math. Phys. 46, 122108 (2005)",
"title": "A de Finetti representation for finite symmetric quantum states",
"url": "https://arxiv.org/abs/quant-ph/0410229"
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