A new approach to realize quantum mechanical squeezing in a nonlinear mechanical oscillator.

https://phys.org/news/2024-07-approach-quantum-mechanical.html

"with enough squeezing state twisted /twirled around itself, helpful since preparation of non-gaussian states requires nonlinearities in mechanical oscillator... mechanical resonator inheriting some of nonlinearity from superconducting qubit coupled to via piezoelectric disk.... 2 microwave photons at frequencies f1 and f2 from drives converted into phonon pair at frequency fm of mechanics... nonlinearity is tunable... mechanical qubits, quantum information (metrology) processing, quantum sensing, bosonic quantum simulation"