Coherent states, path integral, and semiclassical approximation
Coherent states, path integral, and semiclassical approximation
Using the generalized coherent states it is shown that the path integral formulas for SU(2) and SU(1,1) (in the discrete series) are WKB exact, if it is started from the trace of e−iTĤ, where Ĥ is given by a linear combination of generators. In this case, the WKB approximation is …