PROPAGATOR FOR THE DELTA-FUNCTION POTENTIAL MOVING WITH CONSTANT VELOCITY

Authors
CHENG BK DALUZ MGE
Citation
Bk. Cheng et Mge. Daluz, PROPAGATOR FOR THE DELTA-FUNCTION POTENTIAL MOVING WITH CONSTANT VELOCITY, Physical review. A, 47(6), 1993, pp. 4720-4724
Citations number
19
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
47
Issue
6
Year of publication
1993
Pages
4720 - 4724
Database
ISI
SICI code
1050-2947(1993)47:6<4720:PFTDPM>2.0.ZU;2-M
Abstract
We first evaluate the exact propagator for a delta-function potential moving with constant velocity by summing over the spectrum of eigensta tes and by calculating the path integral directly. The ''one-time Gree n's functions'' are then derived from the Fourier transform of the pro pagator obtained. We finally investigate the propagator through an asy mptotic approximation.