dorsal/arxiv
View SchemaA general scheme for ensemble purification
| Authors | Angelo Bassi, GianCarlo Ghirardi |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0206183 |
| URL | https://arxiv.org/abs/quant-ph/0206183 |
| DOI | 10.1016/S0375-9601(02)01670-5 |
| Journal | Phys.Lett. A309 (2003) 24 |
Abstract
We exhibit a general procedure to purify any given ensemble by identifying an appropriate interaction between the physical system S of the ensemble and the reference system K. We show that the interaction can be chosen in such a way to lead to a spatial separation of the pair S-K. As a consequence, one can use it to prepare at a distance different equivalent ensembles. The argument associates a physically precise procedure to the purely formal and fictitious process usually considered in the literature. We conclude with an illuminating example taken from quantum computational theory.
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"abstract": "We exhibit a general procedure to purify any given ensemble by identifying an\nappropriate interaction between the physical system S of the ensemble and the\nreference system K. We show that the interaction can be chosen in such a way to\nlead to a spatial separation of the pair S-K. As a consequence, one can use it\nto prepare at a distance different equivalent ensembles. The argument\nassociates a physically precise procedure to the purely formal and fictitious\nprocess usually considered in the literature. We conclude with an illuminating\nexample taken from quantum computational theory.",
"arxiv_id": "quant-ph/0206183",
"authors": [
"Angelo Bassi",
"GianCarlo Ghirardi"
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"doi": "10.1016/S0375-9601(02)01670-5",
"journal_ref": "Phys.Lett. A309 (2003) 24",
"title": "A general scheme for ensemble purification",
"url": "https://arxiv.org/abs/quant-ph/0206183"
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