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

C. Carraro, S. E. Koonin

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)6741-6750
Number of pages10
JournalPhysical Review B
Volume41
Issue number10
DOIs
StatePublished - 1990

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Monte Carlo method
Monte Carlo methods
Ground state
scaling
ground state
interactions
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Quasielastic response with a real-time path-integral Monte Carlo method. / Carraro, C.; Koonin, S. E.

In: Physical Review B, Vol. 41, No. 10, 1990, p. 6741-6750.

Research output: Contribution to journalArticle

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