an:05153939
Zbl 1111.81066
Novaes, Marcel
Real trajectories in the semiclassical coherent state propagator
EN
J. Math. Phys. 46, No. 10, 102102, 21 p. (2005).
00195105
2005
j
81Q20 81R30
Summary: The semiclassical approximation to the coherent state propagator requires complex classical trajectories in order to satisfy the associated boundary conditions, but finding these trajectories in practice is a difficult task that may compromise the applicability of the approximation. In this work several approximations to the coherent state propagator are derived that make use only of real trajectories, which are easier to handle and have a more direct physical interpretation. It is verified in a particular example that these real trajectories approximations may have excellent accuracy.