Quorum of observables for universal quantum estimation. (Q2716815)
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scientific article; zbMATH DE number 1599457
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Quorum of observables for universal quantum estimation. |
scientific article; zbMATH DE number 1599457 |
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16 May 2001
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quorum of observables
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quantum tomography
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Quorum of observables for universal quantum estimation. (English)
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The set of observables is called quorum if it suffices to give complete quantum information on the system. General conditions for reconstructing an operator from quorum is given in terms of expansion on an irreducible set of operators in the Liouville space. It is shown that all known quantum tomographies (single-mode radiation field, trapped ions, vibration states of molecules and spin systems, etc.) can be described in this framework.
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