期刊
PHYSICAL REVIEW A
卷 92, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.92.011801
关键词
-
资金
- Deutsche Forschungsgemeinschaft [SFB 652]
In this work we generalize the Bochner criterion addressing the characteristic function, i.e., the Fourier transform, of the Glauber-Sudarshan phase-space function. For this purpose we extend the Bochner theorem by including derivatives of the characteristic function. The resulting necessary and sufficient nonclassicality criteria unify previously known moment-based criteria with those based on the characteristic function. For applications of the generalized nonclassicality probes, we provide direct sampling formulas for balanced homodyne detection. A squeezed vacuum state is experimentally realized and characterized with our method. This complete framework-theoretical unification, sampling approach, and experimental implementation-presents an efficient toolbox to characterize quantum states of light for applications in quantum technology.
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