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Open Quantum Systems Decoherence
Gauge invariant information concerning quantum channels
arXiv
Authors: Łukasz Rudnicki, Zbigniew Puchała, Karol Zyczkowski
Year
2017
Paper ID
44467
Status
Preprint
Abstract Read
~2 min
Abstract Words
61
Citations
N/A
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.
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- 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...
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