期刊
PHYSICAL REVIEW LETTERS
卷 115, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.113002
关键词
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资金
- National Basic Research Program [2011CB921200]
- Strategic Priority Research Program (B) of the Chinese Academy of Sciences [XDB01030300]
- National Natural Science Foundation of China [11274289, 11325419, 61327901, 11504362]
- Fundamental Research Funds for the Central Universities [wk2030380004, wk2470000011]
- EU STREP project PAPETS
- EU STREP project QUCHIP
We discuss the use of inequalities of the Leggett-Garg type (LGtI) to witness quantum coherence and present the first experimental violation of this type of inequalities using a light-matter interfaced system. By separately benchmarking the Markovian character of the evolution and the translational invariance of the conditional probabilities, the observed violation of a LGtI is attributed to the quantum coherent character of the process. These results provide a general method to benchmark quantumness when the absence of memory effects can be independently certified and confirm the persistence of quantum coherent features within systems of increasing complexity.
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