English

Real trajectories in the semiclassical coherent state propagator

Quantum Physics 2007-12-04 v1

Abstract

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.

Keywords

Cite

@article{arxiv.quant-ph/0507124,
  title  = {Real trajectories in the semiclassical coherent state propagator},
  author = {Marcel Novaes},
  journal= {arXiv preprint arXiv:quant-ph/0507124},
  year   = {2007}
}

Comments

19 pages, 6 figures

R2 v1 2026-07-22T19:49:53.859Z