English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Strong-field approximation for intense-laser-atom processes: The choice of gauge

MPS-Authors
/persons/resource/persons30281

Bauer,  Dieter
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Bauer, D., Milosevic, D. B., & Becker, W. (2005). Strong-field approximation for intense-laser-atom processes: The choice of gauge. Physical Review A, 72(2): 023415. doi:10.1103/PhysRevA.72.023415.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-8866-5
Abstract
The strong-field approximation (SFA) can be and has been applied in both length gauge and velocity gauge with quantitatively conflicting answers. For ionization of negative ions with a ground state of odd parity, the predictions of the two gauges differ qualitatively: in the envelope of the angular-resolved energy spectrum, dips in one gauge correspond to humps in the other. We show that the length-gauge SFA matches the exact numerical solution of the time-dependent Schrödinger equation.