dorsal/arxiv
View SchemaPreparation information and optimal decompositions for mixed quantum states
| Authors | Andrei N. Soklakov, Ruediger Schack |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0002027 |
| URL | https://arxiv.org/abs/quant-ph/0002027 |
| DOI | 10.1080/09500340008235147 |
| Journal | J. Mod. Opt. 47, 2265-2276 (2000) |
Abstract
Consider a joint quantum state of a system and its environment. A measurement on the environment induces a decomposition of the system state. Using algorithmic information theory, we define the preparation information of a pure or mixed state in a given decomposition. We then define an optimal decomposition as a decomposition for which the average preparation information is minimal. The average preparation information for an optimal decomposition characterizes the system-environment correlations. We discuss properties and applications of the concepts introduced above and give several examples.
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"abstract": "Consider a joint quantum state of a system and its environment. A measurement\non the environment induces a decomposition of the system state. Using\nalgorithmic information theory, we define the preparation information of a pure\nor mixed state in a given decomposition. We then define an optimal\ndecomposition as a decomposition for which the average preparation information\nis minimal. The average preparation information for an optimal decomposition\ncharacterizes the system-environment correlations. We discuss properties and\napplications of the concepts introduced above and give several examples.",
"arxiv_id": "quant-ph/0002027",
"authors": [
"Andrei N. Soklakov",
"Ruediger Schack"
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"doi": "10.1080/09500340008235147",
"journal_ref": "J. Mod. Opt. 47, 2265-2276 (2000)",
"title": "Preparation information and optimal decompositions for mixed quantum states",
"url": "https://arxiv.org/abs/quant-ph/0002027"
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