Semiclassical calculation of the vibrational echo

W. G. Noid, Gregory S. Ezra, Roger F. Loring

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

For a thermal distribution of noninteracting anharmonic oscillators, the quantum echo response function differs from the classical mechanical limit in exhibiting recurrences and in the existence of a quantum mechanical frequency shift. Both of these effects are reproduced by the semiclassical approach. In a large system with dissipation, effectively irreversible dephasing processes can obscure the differences between classical and quantum calculations.

Original languageEnglish (US)
Pages (from-to)1491-1499
Number of pages9
JournalJournal of Chemical Physics
Volume120
Issue number3
DOIs
StatePublished - Jan 15 2004

Fingerprint

irreversible processes
frequency shift
echoes
dissipation
oscillators
Hot Temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Noid, W. G. ; Ezra, Gregory S. ; Loring, Roger F. / Semiclassical calculation of the vibrational echo. In: Journal of Chemical Physics. 2004 ; Vol. 120, No. 3. pp. 1491-1499.
@article{4dadd999cc3a4e7cbe03a9b3e5dad519,
title = "Semiclassical calculation of the vibrational echo",
abstract = "For a thermal distribution of noninteracting anharmonic oscillators, the quantum echo response function differs from the classical mechanical limit in exhibiting recurrences and in the existence of a quantum mechanical frequency shift. Both of these effects are reproduced by the semiclassical approach. In a large system with dissipation, effectively irreversible dephasing processes can obscure the differences between classical and quantum calculations.",
author = "Noid, {W. G.} and Ezra, {Gregory S.} and Loring, {Roger F.}",
year = "2004",
month = "1",
day = "15",
doi = "10.1063/1.1633550",
language = "English (US)",
volume = "120",
pages = "1491--1499",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "3",

}

Semiclassical calculation of the vibrational echo. / Noid, W. G.; Ezra, Gregory S.; Loring, Roger F.

In: Journal of Chemical Physics, Vol. 120, No. 3, 15.01.2004, p. 1491-1499.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Semiclassical calculation of the vibrational echo

AU - Noid, W. G.

AU - Ezra, Gregory S.

AU - Loring, Roger F.

PY - 2004/1/15

Y1 - 2004/1/15

N2 - For a thermal distribution of noninteracting anharmonic oscillators, the quantum echo response function differs from the classical mechanical limit in exhibiting recurrences and in the existence of a quantum mechanical frequency shift. Both of these effects are reproduced by the semiclassical approach. In a large system with dissipation, effectively irreversible dephasing processes can obscure the differences between classical and quantum calculations.

AB - For a thermal distribution of noninteracting anharmonic oscillators, the quantum echo response function differs from the classical mechanical limit in exhibiting recurrences and in the existence of a quantum mechanical frequency shift. Both of these effects are reproduced by the semiclassical approach. In a large system with dissipation, effectively irreversible dephasing processes can obscure the differences between classical and quantum calculations.

UR - http://www.scopus.com/inward/record.url?scp=1142279639&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1142279639&partnerID=8YFLogxK

U2 - 10.1063/1.1633550

DO - 10.1063/1.1633550

M3 - Article

C2 - 15268274

AN - SCOPUS:1142279639

VL - 120

SP - 1491

EP - 1499

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 3

ER -