期刊
PHYSICAL REVIEW LETTERS
卷 120, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.120.040405
关键词
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资金
- MSCA-IF-EF-ST-QFluctTrans [706890]
- EU FP7 grant TherMiQ [618074]
- DfE-SFI Investigator Programme [15/IA/2864]
- H Collaborative Project TEQ [766900]
- Royal Society
- ARC [FT160100073]
We derive a necessary and sufficient condition for a quantum process to be Markovian which coincides with the classical one in the relevant limit. Our condition unifies all previously known definitions for quantum Markov processes by accounting for all potentially detectable memory effects. We then derive a family of measures of non-Markovianity with clear operational interpretations, such as the size of the memory required to simulate a process or the experimental falsifiability of a Markovian hypothesis.
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