2-TIME CORRELATION-FUNCTIONS OF A HARMONIC SYSTEM NONBILINEARLY COUPLED TO A HEAT BATH - SPONTANEOUS RAMAN-SPECTROSCOPY

Authors
OKUMURA K TANIMURA Y
Citation
K. Okumura et Y. Tanimura, 2-TIME CORRELATION-FUNCTIONS OF A HARMONIC SYSTEM NONBILINEARLY COUPLED TO A HEAT BATH - SPONTANEOUS RAMAN-SPECTROSCOPY, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(3), 1997, pp. 2747-2750
Citations number
16
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
56
Issue
3
Year of publication
1997
Part
A
Pages
2747 - 2750
Database
ISI
SICI code
1063-651X(1997)56:3<2747:2COAHS>2.0.ZU;2-M
Abstract
A harmonic system coupled to a heat bath comprised of harmonic oscilla tors through a nonbilinear system-bath interaction q(2)q(j) is conside red, where q and q(j) are the system and bath coordinates, respectivel y. The two-time correlation functions for the model are analytically o btained through a diagrammatic expansion. Numerical calculations of th e analytical results are presented for the spontaneous (frequency-doma in) Raman spectroscopy. Comparison with numerical results from the con ventional linear-coupling model (the Brownian oscillator model) are ma de, which indicates experimentally distinguishable temperature depende nces.