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Cumulant methods and short time propagators (1989)

Coalson, Rob D. ; Freeman, David L. ; Doll, J. D.

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 91 (1989), S. 4242-4248

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ISSN: 1089-7690

Source: AIP Digital Archive

Topics: Physics , Chemistry and Pharmacology

Notes: The present paper clarifies a number of issues concerning the general problem of constructing improved short time quantum mechanical propagators. Cumulant methods are shown to be a particularly convenient tool for this task. Numerical results comparing methods based on partial averaging and on gradient approaches are presented for simple model problems and for many particle quantum fluids.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.456803

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