---
res:
bibo_abstract:
- Signatures of the Coulomb corrections in the photoelectron momentum distribution
during laser-induced ionization of atoms or ions in tunneling and multiphoton
regimes are investigated analytically in the case of a one-dimensional problem.
A high-order Coulomb-corrected strong-field approximation is applied, where the
exact continuum state in the S matrix is approximated by the eikonal Coulomb-Volkov
state including the second-order corrections to the eikonal. Although without
high-order corrections our theory coincides with the known analytical R-matrix
(ARM) theory, we propose a simplified procedure for the matrix element derivation.
Rather than matching the eikonal Coulomb-Volkov wave function with the bound state
as in the ARM theory to remove the Coulomb singularity, we calculate the matrix
element via the saddle-point integration method by time as well as by coordinate,
and in this way avoiding the Coulomb singularity. The momentum shift in the photoelectron
momentum distribution with respect to the ARM theory due to high-order corrections
is analyzed for tunneling and multiphoton regimes. The relation of the quantum
corrections to the tunneling delay time is discussed.@eng
bibo_authorlist:
- foaf_Person:
foaf_givenName: Michael
foaf_name: Klaiber, Michael
foaf_surname: Klaiber
- foaf_Person:
foaf_givenName: Jiří
foaf_name: Daněk, Jiří
foaf_surname: Daněk
- foaf_Person:
foaf_givenName: Enderalp
foaf_name: Yakaboylu, Enderalp
foaf_surname: Yakaboylu
foaf_workInfoHomepage: http://www.librecat.org/personId=38CB71F6-F248-11E8-B48F-1D18A9856A87
- foaf_Person:
foaf_givenName: Karen
foaf_name: Hatsagortsyan, Karen
foaf_surname: Hatsagortsyan
- foaf_Person:
foaf_givenName: Christoph
foaf_name: Keitel, Christoph
foaf_surname: Keitel
bibo_doi: 10.1103/PhysRevA.95.023403
bibo_issue: '2'
bibo_volume: 95
dct_date: 2017^xs_gYear
dct_isPartOf:
- http://id.crossref.org/issn/24699926
dct_language: eng
dct_publisher: American Physical Society@
dct_title: Strong-field ionization via a high-order Coulomb-corrected strong-field
approximation@
...