Single and double photoionization from dipole response function

Robert C. Forrey, Zong Chao Yan, H. R. Sadeghpour, A. Dalgarno

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A method for including the correlated motion of the electrons in the calculation of single and double ionization of atomic and molecular systems by the absorption of a single photon is described. The correlated dipole response function is central to the formulation. The single and double photoionization cross sections of helium are calculated. We show that the method accurately corrects for the error that is present at high energies when the length gauge is used to characterize the photon interaction. The cross sections obtained from the length, velocity, and acceleration gauges are brought into agreement with each other and with cross sections calculated from the many-body perturbation theory.

Original languageEnglish (US)
Pages (from-to)3662-3664
Number of pages3
JournalPhysical Review Letters
Volume78
Issue number19
DOIs
StatePublished - May 12 1997

Fingerprint

photoionization
dipoles
cross sections
photons
perturbation theory
helium
formulations
ionization
electrons
interactions
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Forrey, Robert C. ; Yan, Zong Chao ; Sadeghpour, H. R. ; Dalgarno, A. / Single and double photoionization from dipole response function. In: Physical Review Letters. 1997 ; Vol. 78, No. 19. pp. 3662-3664.
@article{5cd4d7e8536646a2916bd5ddd5cea572,
title = "Single and double photoionization from dipole response function",
abstract = "A method for including the correlated motion of the electrons in the calculation of single and double ionization of atomic and molecular systems by the absorption of a single photon is described. The correlated dipole response function is central to the formulation. The single and double photoionization cross sections of helium are calculated. We show that the method accurately corrects for the error that is present at high energies when the length gauge is used to characterize the photon interaction. The cross sections obtained from the length, velocity, and acceleration gauges are brought into agreement with each other and with cross sections calculated from the many-body perturbation theory.",
author = "Forrey, {Robert C.} and Yan, {Zong Chao} and Sadeghpour, {H. R.} and A. Dalgarno",
year = "1997",
month = "5",
day = "12",
doi = "10.1103/PhysRevLett.78.3662",
language = "English (US)",
volume = "78",
pages = "3662--3664",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "19",

}

Single and double photoionization from dipole response function. / Forrey, Robert C.; Yan, Zong Chao; Sadeghpour, H. R.; Dalgarno, A.

In: Physical Review Letters, Vol. 78, No. 19, 12.05.1997, p. 3662-3664.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Single and double photoionization from dipole response function

AU - Forrey, Robert C.

AU - Yan, Zong Chao

AU - Sadeghpour, H. R.

AU - Dalgarno, A.

PY - 1997/5/12

Y1 - 1997/5/12

N2 - A method for including the correlated motion of the electrons in the calculation of single and double ionization of atomic and molecular systems by the absorption of a single photon is described. The correlated dipole response function is central to the formulation. The single and double photoionization cross sections of helium are calculated. We show that the method accurately corrects for the error that is present at high energies when the length gauge is used to characterize the photon interaction. The cross sections obtained from the length, velocity, and acceleration gauges are brought into agreement with each other and with cross sections calculated from the many-body perturbation theory.

AB - A method for including the correlated motion of the electrons in the calculation of single and double ionization of atomic and molecular systems by the absorption of a single photon is described. The correlated dipole response function is central to the formulation. The single and double photoionization cross sections of helium are calculated. We show that the method accurately corrects for the error that is present at high energies when the length gauge is used to characterize the photon interaction. The cross sections obtained from the length, velocity, and acceleration gauges are brought into agreement with each other and with cross sections calculated from the many-body perturbation theory.

UR - http://www.scopus.com/inward/record.url?scp=0005620010&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0005620010&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.78.3662

DO - 10.1103/PhysRevLett.78.3662

M3 - Article

AN - SCOPUS:0005620010

VL - 78

SP - 3662

EP - 3664

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 19

ER -