An optomechanical platform for quantum hypothesis testing for collapse models

Quantum hypothesis testing has shown the advantages that quantum resources can offer in the discrimination of competing hypothesis. Here, we apply this framework to optomechanical systems and fundamental physics questions. In particular, we focus on an optomechanical system composed of two cavities employed to perform quantum channel discrimination. We show that input squeezed optical noise, and feasible measurement schemes on the output cavity modes, allow to obtain an advantage with respect to any comparable classical schemes. We apply these results to the discrimination of models of spontaneous collapse of the wavefunction, highlighting the possibilities offered by this scheme for fundamental physics searches.

Automated summary

Quantum hypothesis testing applied to optomechanical systems reveals advantages in discriminating competing hypothesis, particularly in utilizing input squeezed optical noise and feasible measurement schemes on output cavity modes. This provides an advantage over classical schemes and offers possibilities for fundamental physics searches, especially in discriminating models of spontaneous collapse of the wavefunction.