Rudnicki, Lukasz, Puchala, Zbigniew ORCID: 0000-0002-4739-0400 and Zyczkowski, Karol ORCID: 0000-0002-0653-3639 (2018). Gauge invariant information concerning quantum channels. Quantum, 2. WIEN: VEREIN FORDERUNG OPEN ACCESS PUBLIZIERENS QUANTENWISSENSCHAF. ISSN 2521-327X

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Abstract

Motivated by the gate set tomography we study quantum channels from the perspective of information which is invariant with respect to the gauge realized through similarity of matrices representing channel superoperators. We thus use the complex spectrum of the superoperator to provide necessary conditions relevant for complete positivity of qubit channels and to express various metrics such as average gate fidelity.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Rudnicki, LukaszUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Puchala, ZbigniewUNSPECIFIEDorcid.org/0000-0002-4739-0400UNSPECIFIED
Zyczkowski, KarolUNSPECIFIEDorcid.org/0000-0002-0653-3639UNSPECIFIED
URN: urn:nbn:de:hbz:38-202868
DOI: 10.22331/q-2018-04-11-60
Journal or Publication Title: Quantum
Volume: 2
Date: 2018
Publisher: VEREIN FORDERUNG OPEN ACCESS PUBLIZIERENS QUANTENWISSENSCHAF
Place of Publication: WIEN
ISSN: 2521-327X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
MAPS; FIDELITYMultiple languages
Quantum Science & Technology; Physics, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/20286

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