Guessing the state of a quantum system from a limited set of observations | Zendy

Eriksson K.E. | Zendy

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Guessing the state of a quantum system from a limited set of observations

Author(s) -

Eriksson K.E.

Publication year - 1989

Publication title -

international journal of quantum chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.484

H-Index - 105

eISSN - 1097-461X

pISSN - 0020-7608

DOI - 10.1002/qua.560350610

Subject(s) - density matrix , quantum , series (stratigraphy) , set (abstract data type) , state (computer science) , quantum system , matrix (chemical analysis) , statistical physics , mathematics , quantum mechanics , computer science , physics , chemistry , algorithm , chromatography , biology , programming language , paleontology

A quantum system is repeatedly prepared in the same way and then observed in measurement processes. The following problem is stated and solved: Given the results of a series of observations, what is the best guess for a density matrix describing the ensemble of prepared systems? The corresponding classical problem and its solution are obtained as a special case.

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