Compression of quantum-measurement operations

Andreas Winter, Serge Massar

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


A method to compress quantum measurements to produce a minimum amount of data was discussed. The quantum measurment compression was analyzed with respect to a certain positive operator-valued measure (POVM). It was shown that the amount of data produced by the measurement to the Von Neumann entropy of the ensemble could be reduced without a decrease in the amount of knowledge provided by the quantum state measurements. The measurements provides a precise and model independent measure of the amount of knowledge that is obtained about a quantum states.

Original languageEnglish
Article number012311
Pages (from-to)123111-1231112
Number of pages1108002
JournalPhysical Review A
Issue number1
StatePublished - Jul 2001
Externally publishedYes


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