Tunneling Catastrophes of the Partition Function

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DC Field	Value	Language
dc.creator	Carvalho C. A. A. de	-
dc.creator	Cavalcanti R. M.	-
dc.date	1997	-
dc.date.accessioned	2013-05-29T22:01:40Z	-
dc.date.available	2013-05-29T22:01:40Z	-
dc.date.issued	2013-05-30	-
dc.identifier	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97331997000300006	-
dc.identifier	http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=1997&volume=27&issue=3&spage=	-
dc.identifier.uri	http://koha.mediu.edu.my:8181/jspui/handle/123456789/2237	-
dc.description	We use path-integrals to derive a general expression for the semiclassical approximation to the partition function of a one-dimensional quantum-mechanical system. Our expression depends solely on ordinary integrals which involve the potential. For high temperatures, the semiclassical expression is dominated by single closed paths. As we lower the temperature, new closed paths may appear, including tunneling paths. The transition from single to multiple-path regime corresponds to well-defined catastrophes. Tunneling sets in whenever they occur. Our formula fully accounts for this feature	-
dc.publisher	Sociedade Brasileira de Física	-
dc.source	Brazilian Journal of Physics	-
dc.title	Tunneling Catastrophes of the Partition Function	-
Appears in Collections:	Physics and Astronomy

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