New method for obtaining complex roots in the semiclassical coherent-state propagator formula

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DC Field	Value	Language
dc.creator	Xavier Jr. Ademir Luix	-
dc.date	2001	-
dc.date.accessioned	2013-05-30T01:08:48Z	-
dc.date.available	2013-05-30T01:08:48Z	-
dc.date.issued	2013-05-30	-
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332001000300018	-
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2001&volume=31&issue=3&spage=461	-
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/3258	-
dc.description	A semiclassical formula for the coherent-state propagator requires the determination of specific classical paths inhabiting a complex phase-space and governed by a Hamiltonian flux. Such trajectories are constrained to special boundary conditions which render their determination difficult by common methods. In this paper we present a new method based on Runge-Kutta integrator for a quick, easy and accurate determination of these trajectories. Using nonlinear one dimensional systems we show that the semiclassical formula is highly accurate as compared to its exact counterpart. Further, we clarify how the phase of the semiclassical approximation is correctly retrieved during the time evolution.	-
dc.publisher	Sociedade Brasileira de Física	-
dc.source	Brazilian Journal of Physics	-
dc.title	New method for obtaining complex roots in the semiclassical coherent-state propagator formula	-
Appears in Collections:	Physics and Astronomy

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