Interpreting nonlinear vibrational spectroscopy with the classical mechanical analogs of double-sided Feynman diagrams

W. G. Noid, Roger F. Loring

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

An approximate formulation of the classical mechanical third-order vibrational response function for an anharmonic solute oscillator interacting with a harmonic solvent was studied. This formalism permits the identification of the classical mechanical analog of the pure dephasing of a quantum mechanical degree of freedom. It also suggests the construction of classical mechanical analogs of the double-sided Feynman diagrams of quantum mechanics. Application of a rotating wave approximation permits the analytic extraction of signals obeying particular spatial phase matching conditions from a classical-mechanical response function.

Original languageEnglish (US)
Pages (from-to)7057-7069
Number of pages13
JournalJournal of Chemical Physics
Volume121
Issue number15
DOIs
StatePublished - Oct 15 2004

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Vibrational spectroscopy
Feynman diagrams
analogs
Phase matching
Quantum theory
phase matching
spectroscopy
quantum mechanics
solutes
degrees of freedom
oscillators
formalism
harmonics
formulations
approximation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

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Interpreting nonlinear vibrational spectroscopy with the classical mechanical analogs of double-sided Feynman diagrams. / Noid, W. G.; Loring, Roger F.

In: Journal of Chemical Physics, Vol. 121, No. 15, 15.10.2004, p. 7057-7069.

Research output: Contribution to journalArticle

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