Nonclassical correlations in decaying systems
arXiv:2110.10943 · doi:10.1103/PhysRevA.105.042203
Abstract
A quantum decaying system can reveal its nonclassical behavior by being noninvasively measured. Correlations of weak measurements in the noninvasive limit violate the classical bound for a universal class of systems. The violation is related to the incompatibility between exponential decay and unitary evolution. The phenomenon can be experimentally observed by continuous weak measurements and a large class of observables. The nonclassical nature of such a system allows us to treat it as a potential quantum resource.
arXiv comment10 pages, 4 figures
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