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Interference of Quantum Channels

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 07 Aug 2003Embargo end date: 01 Jan 2003 English Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 91 (issn: 0031-9007, eissn: 1079-7114, Copyright policy )
Authors: Oi, Daniel K.L.;

doi: 10.1103/physrevlett.91.067902 , 10.48550/arxiv.quant-ph/0303178

pmid: 12935111

arXiv: quant-ph/0303178

Interference of Quantum Channels

Abstract

We show how interferometry can be used to characterise certain aspects of general quantum processes, in particular, the coherence of completely positive maps. We derive a measure of coherent fidelity, maximum interference visibility and the closest unitary operator to a given physical process under this measure.

4 pages, 5 figures, REVTeX 4, typographical corrections and added acknowledgement

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Keywords

Quantum Physics, Physics, FOS: Physical sciences, Quantum Physics (quant-ph), 530

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
46
Top 10%
Top 10%
Top 10%
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