Mutually unbiased binary observable sets on N qubits

Jay Lawrence; Caslav Brukner; Anton Zeilinger

doi:10.1103/PhysRevA.65.032320

Mutually unbiased binary observable sets on N qubits

Jay Lawrence
, Caslav Brukner
, Anton Zeilinger

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

Two- and three-qubit cases are given to illustrate several important points. First, with regard to state preparation, N observables suffice to define any of the listed basis states completely. Second, with regard to the determination of a general, possibly mixed state, recall the 4N-1 real parameters are required to specify the N-qubit density matrix completely.

Original language	English
Article number	032320
Number of pages	5
Journal	Physical Review A
Volume	65
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.65.032320
Publication status	Published - 2002

Austrian Fields of Science 2012

103026 Quantum optics

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10.1103/PhysRevA.65.032320

http://arxiv.org/abs/quant-ph/0104012

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author = "Jay Lawrence and Caslav Brukner and Anton Zeilinger",

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AB - Two- and three-qubit cases are given to illustrate several important points. First, with regard to state preparation, N observables suffice to define any of the listed basis states completely. Second, with regard to the determination of a general, possibly mixed state, recall the 4N-1 real parameters are required to specify the N-qubit density matrix completely.

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Mutually unbiased binary observable sets on N qubits

Abstract

Austrian Fields of Science 2012

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