How to generate a nonclassical continuous-variable (CV) state by making measurements on the discrete-variable (DV) part of a compound CV-DV system? Find out in our latest PRL paper.
Given a compound discrete- and continuous-variable (CV-DV) system, we name “conditional hybrid nonclassicality” (CHN) the ability to produce a nonclassical CV state by projecting onto a general superposition of the DV subsystem. We find that CHN is a very interesting way to characterize quantum states and we test it experimentally on our hybrid entangled states of light.
