Full metadata record
DC FieldValueLanguage
dc.contributor.authorStolze, Joachim-
dc.contributor.authorBurghardt, Bernd-
dc.contributor.authorEicke, Joachim-
dc.date.accessioned2008-06-06T08:42:49Z-
dc.date.available2008-06-06T08:42:49Z-
dc.date.issued1998-01-22-
dc.identifier.citationBurghardt, Bernd; Eicke, Joachim; Stolze, Joachim: In: Evaluation of coherent-state path integrals in statistical mechanics by matrix multiplication. In: Journal of Chemical Physics Nr. 4, Jg. 108(1998), S. 1562-1569, doi: 10.1063/1.475527.de
dc.identifier.urihttp://hdl.handle.net/2003/25445-
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-2469-
dc.description.abstractThe numerical evaluation of coherent-state path-integral representations for partition functions and other quantities in equilibrium quantum statistical mechanics is discussed. Several coherent-state path-integral schemes are introduced, which differ from each other by the order of approximation and by the operator ordering employed in the high-temperature approximation of the density operator. Simple one-dimensional systems are used to test these schemes. For the harmonic oscillator, finite-dimensional approximations to the coherent-state path integral are calculated analytically and compared to each other and to the real-space path integral. For anharmonic systems, integrations must be approximated by quadrature formulas. This leads to a matrix multiplication scheme which is tested for the double-well potential. The results obtained are accurate from zero temperature way up into the high-temperature regime where quantum effects become negligible. This is a significant advantage over traditional real-space path integral schemes which break down at low temperatures.en
dc.language.isoende
dc.publisherAmerican Institute of Physicsen
dc.rights©1998 American Institute of Physics.en
dc.subject.ddc530-
dc.titleEvaluation of coherent-state path integrals in statistical mechanics by matrix multiplicationen
dc.typeTextde
dc.identifier.doi10.1063/1.475527-
dc.type.publicationtypearticlede
dc.identifier.urlhttp://dx.doi.org/ 10.1063/1.475527-
dcterms.accessRightsrestricted-
Appears in Collections:Stolze, Joachim Prof. Dr.

Files in This Item:
There are no files associated with this item.


This item is protected by original copyright



This item is protected by original copyright rightsstatements.org