Quantum Optomechanics - a road to gravity?

Massive mechanical objects are now becoming available as new systems for quantum science. Devices currently under investigation cover a mass range of more than 17 orders of magnitude - from nanomechanical waveguides of some picogram to macroscopic, kilogram-weight mirrors of gravitational wave detectors. This has fascinating perspectives for quantum foundations: the mass of available mechanical resonators provides access to a hitherto untested parameter regime of macroscopic quantum physics, eventually enabling novel table-top tests at the interface between quantum physics and gravity.