期刊
PHYSICAL REVIEW LETTERS
卷 125, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.125.230603
关键词
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资金
- EU [GA794842]
- Spanish MINECO [Severo Ochoa SEV-2015-0522, QIBEQI FIS2016-80773-P]
- Fundacio Cellex
- Generalitat de Catalunya (CERCA program)
- ERC [682726]
- Generalitat de Catalunya [SGR 875]
- European Research Council (ERC) [682726] Funding Source: European Research Council (ERC)
I identify a fundamental difference between classical and quantum dynamics in the linear response regime by showing that the latter is, in general, contextual. This allows me to provide an example of a quantum engine whose favorable power output scaling unavoidably requires nonclassical effects in the form of contextuality. Furthermore, I describe contextual advantages for local metrology. Given the ubiquity of linear response theory, I anticipate that these tools will allow one to certify the nonclassicality of a wide array of quantum phenomena.
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