Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published April 1, 1990 | public
Journal Article Open

Quasielastic response with a real-time path-integral Monte Carlo method


We formulate the quasielastic response of a nonrelativistic many-body system at zero temperature in terms of ground-state density-matrix elements and real-time path integrals that embody the final-state interactions. While the former provide the weight for a conventional Monte Carlo calculation, the latter require a more sophisticated treatment. We argue that the stationary-phase Monte Carlo technique recently developed by Doll et al. can be used to study the approach to "Y scaling." We perform calculations for a particle in a potential well in one and three dimensions and compare them with the exact results available for these models.

Additional Information

©1990 The American Physical Society. Received 6 October 1989. This work was supported in part by the National Science Foundation under Grant Nos. PHY88-17296 and PHY86-04197. One of us (S.E>K>) gratefully acknowledges the hospitality of the Massachusetts Institute of Technology (MIT) Center for Theoretical Physics during the initial phase of this work.


Files (1.7 MB)
Name Size Download all
1.7 MB Preview Download

Additional details

August 22, 2023
October 16, 2023