Artículos de revistas
A new form of path integral for the coherent states representation and its semiclassical limit
Registro en:
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 35, n. 1, p. 175-183, 2005.
0103-9733
S0103-97332005000100015
10.1590/S0103-97332005000100015
Autor
Santos, L. C. dos
Aguiar, M. A. M. de
Institución
Resumen
The overcompleteness of the coherent states basis leads to a multiplicity of representations of Feynman's path integral. These different representations, although equivalent quantum mechanically, lead to different semiclassical limits. Two such semiclassical formulas were derived in [1] for the two corresponding path integral forms suggested by Klauder and Skagerstan in [2]. Each of these formulas involve trajectories governed by a different classical representation of the Hamiltonian operator: the P representation in one case and the Q representation in other. In this paper we construct a third representation of the path integral whose semiclassical limit involves directly the Weyl representation of the Hamiltonian operator, i.e., the classical Hamiltonian itself. 175 183 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)