Forward-backward semiclassical and quantum trajectory methods for time correlation functions

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Forward-backward trajectory formulations of time correlation functions are reviewed. Combination of the forward and reverse time evolution operators within the time-dependent semiclassical approximation minimizes phase cancellation, giving rise to an efficient methodology for simulating the dynamics of low-temperature fluids. A quantum mechanical version of the forward-backward formulation, based on the hydrodynamic formulation of time-dependent quantum mechanics, is also available but is practical only for small systems.

Original languageEnglish (US)
Pages (from-to)14442-14452
Number of pages11
JournalPhysical Chemistry Chemical Physics
Issue number32
StatePublished - Aug 28 2011

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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