Squeezed coherent states for gravitational well in noncommutative space

Gravitational well is a widely used system for the verification of the quantum weak equivalence principle (WEP). We have studied the quantum gravitational well under the shed of noncommutative (NC) space so that the results can be utilized for testing the validity of WEP in NC-space. To keep our study widely usable, we have considered both position-position and momentum-momentum noncommutativity. Since coherent state (CS) structure provides a natural bridge between the classical and quantum domain descriptions, the quantum domain validity of purely classical phenomena like free fall under gravity might be verified with the help of CS. We have constructed CS with the aid of a Lewis-Riesenfeld phase-space invariant operator. We deduced the uncertainty relations from the expectation values of the observables and showed that the solutions of the time-dependent Schrodinger equation are squeezed coherent states.