Ray‐Kuang Lee

A Sensitive Nonclassicality Certification Functional for Continuous-Variable Systems

If the \ps-based Glauber-Sudarshan distribution, $P_{\state}$, has negative values the quantum state,~$\state$, it describes is nonclassical. Due to $P$'s singular behaviour this simple criterion is impractical to use. Recent work [Bohmann and Agudelo, Phys. Rev. Lett. 124, 13360...