Nonclassicality tests and entanglement witnesses for macroscopic mechanical superposition states
Nonclassicality tests and entanglement witnesses for macroscopic mechanical superposition states
We describe a set of measurement protocols for performing nonclassicality tests and the verification of entangled superposition states of macroscopic continuous variable systems, such as nanomechanical resonators. Following earlier works, we first consider a setup where a two-level system is used to indirectly probe the motion of the mechanical system …