Can the displacemon device test objective collapse models?

Testing the limits of applicability quantum mechanics will deepen our understanding universe and may shed light on interplay between gravity. At present there is a wide range approaches for such macroscopic tests spanning from matter-wave interferometry large molecules to precision measurements heating rates in motion micro-scale cantilevers. The “displacemon” proposed electromechanical device consisting mechanical resonator flux-coupled superconducting qubit enabling generation readout states. In original proposal, was carbon nanotube, containing 106 nucleons. Here, order probe at more scale, we propose using an aluminum two larger mass scales, one inspired by Marshall–Simon–Penrose–Bouwmeester moving-mirror set Planck mass. For device, examine experimental requirements needed perform test thus feasibly detect decoherence effects predicted objective collapse models: Diósi–Penrose continuous spontaneous localization. Our protocol testing these theories takes advantage displacemon architecture create non-Gaussian states out equilibrium with their environment then analyzes measurement statistics qubit. We find that improvements fabrication vibration sensitivities devices, provides new route mechanisms beyond standard theory.