Published October 1, 1989
| Version v1
Journal article
Cumulant methods and short time propagators
Creators
- 1. Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (USA)
- 2. Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881
- 3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545
Description
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
Additional details
Publishing Information
- Journal Title
- Journal of Chemical Physics
- Journal Volume
- 91
- Journal Issue
- 7
- Series
- J. Chem. Phys.
- Journal Page Range
- 4242-4248
- ISSN
- 0021-9606
- CODEN
- JCPSA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21015543
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- MANY-BODY PROBLEM; PROPAGATOR; QUANTUM FLUIDS; QUANTUM MECHANICS; STRUCTURE FACTORS
- Descriptors DEC
- FLUIDS; MECHANICS