On the use of the Kramers-Henneberger Hamiltonian in multi-photon ionization calculations

I. A. Ivanov; A. S. Kheifets

doi:10.1088/0953-4075/38/13/016

On the use of the Kramers-Henneberger Hamiltonian in multi-photon ionization calculations

I. A. Ivanov^*, A. S. Kheifets

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We employ the Kramers-Henneberger Hamiltonian for time-independent calculations of two-photon ionization of atoms with one and two electrons. As compared to the electromagnetic interaction in the length and velocity gauges, the presently employed Kramers-Henneberger gauge has an advantage of the dipole matrix elements for the free-free electron transitions being finite and well-defined quantities. This circumstance simplifies considerably the computations and allows us to obtain accurate results for the two-photon ionization of realistic atomic systems.

Original language	English
Pages (from-to)	2245-2255
Number of pages	11
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	38
Issue number	13
DOIs	https://doi.org/10.1088/0953-4075/38/13/016
Publication status	Published - 14 Jul 2005

Access to Document

10.1088/0953-4075/38/13/016

Cite this

@article{42a81b76cdc44162a4a3f5af76d0fb6f,

title = "On the use of the Kramers-Henneberger Hamiltonian in multi-photon ionization calculations",

abstract = "We employ the Kramers-Henneberger Hamiltonian for time-independent calculations of two-photon ionization of atoms with one and two electrons. As compared to the electromagnetic interaction in the length and velocity gauges, the presently employed Kramers-Henneberger gauge has an advantage of the dipole matrix elements for the free-free electron transitions being finite and well-defined quantities. This circumstance simplifies considerably the computations and allows us to obtain accurate results for the two-photon ionization of realistic atomic systems.",

author = "Ivanov, \{I. A.\} and Kheifets, \{A. S.\}",

year = "2005",

month = jul,

day = "14",

doi = "10.1088/0953-4075/38/13/016",

language = "English",

volume = "38",

pages = "2245--2255",

journal = "Journal of Physics B: Atomic, Molecular and Optical Physics",

issn = "0953-4075",

publisher = "Institute of Physics",

number = "13",

}

TY - JOUR

T1 - On the use of the Kramers-Henneberger Hamiltonian in multi-photon ionization calculations

AU - Ivanov, I. A.

AU - Kheifets, A. S.

PY - 2005/7/14

Y1 - 2005/7/14

N2 - We employ the Kramers-Henneberger Hamiltonian for time-independent calculations of two-photon ionization of atoms with one and two electrons. As compared to the electromagnetic interaction in the length and velocity gauges, the presently employed Kramers-Henneberger gauge has an advantage of the dipole matrix elements for the free-free electron transitions being finite and well-defined quantities. This circumstance simplifies considerably the computations and allows us to obtain accurate results for the two-photon ionization of realistic atomic systems.

AB - We employ the Kramers-Henneberger Hamiltonian for time-independent calculations of two-photon ionization of atoms with one and two electrons. As compared to the electromagnetic interaction in the length and velocity gauges, the presently employed Kramers-Henneberger gauge has an advantage of the dipole matrix elements for the free-free electron transitions being finite and well-defined quantities. This circumstance simplifies considerably the computations and allows us to obtain accurate results for the two-photon ionization of realistic atomic systems.

UR - https://www.scopus.com/pages/publications/21044444583

U2 - 10.1088/0953-4075/38/13/016

DO - 10.1088/0953-4075/38/13/016

M3 - Article

SN - 0953-4075

VL - 38

SP - 2245

EP - 2255

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

IS - 13

ER -

On the use of the Kramers-Henneberger Hamiltonian in multi-photon ionization calculations

Abstract

Access to Document

Other files and links

Fingerprint

Cite this