Abstract
We investigate the coherence of quantum channels and establish a resource theory for quantifying the coherence of quantum channels. To this aim, we define the incoherent channels and incoherent superchannels. This theory recovers the case of quantum states when we view quantum states as a special case of quantum channels and also allows some analytical expressions for coherence measures.
- Received 25 July 2019
DOI:https://doi.org/10.1103/PhysRevA.100.052311
©2019 American Physical Society
Physics Subject Headings (PhySH)
Quantum Information, Science & TechnologyGeneral Physics