dorsal/arxiv
View SchemaContinuous optimal ensembles I: A geometrical characterization of robustly separable quantum states
| Authors | Roman R. Zapatrin |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0503173 |
| URL | https://arxiv.org/abs/quant-ph/0503173 |
Abstract
A geometrical characterization of robustly separable (that is, remaining separable under sufficiently small variiations) mixed states of a bipartite quantum system is given. It is shown that the density matrix of any such state can be represented as a normal vector to a hypersurface in the Euclidean space of all self-adjoint operators in the state space of the whole system. The expression for this hypersurface is provided.
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"abstract": "A geometrical characterization of robustly separable (that is, remaining\nseparable under sufficiently small variiations) mixed states of a bipartite\nquantum system is given. It is shown that the density matrix of any such state\ncan be represented as a normal vector to a hypersurface in the Euclidean space\nof all self-adjoint operators in the state space of the whole system. The\nexpression for this hypersurface is provided.",
"arxiv_id": "quant-ph/0503173",
"authors": [
"Roman R. Zapatrin"
],
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"quant-ph"
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"title": "Continuous optimal ensembles I: A geometrical characterization of robustly separable quantum states",
"url": "https://arxiv.org/abs/quant-ph/0503173"
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