Controlling Phase Space Caustics in the Semiclassical Coherent State Propagator

A. D. Ribeiro, M. A. M. de Aguiar

The semiclassical formula for the quantum propagator in the coherent state representation $<{\mathbf{z}}^{\prime \prime }|e^{-i\hat{H}T/\hslash }|{\mathbf{z}}^{\prime }>$ is not free from the problem of caus…