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Title: The Role of Polarization for Bound States in Strong Fields
Abstract As atomic matter interacts with ultrastrong fields, the bound electrons are polarized and have ionization energies changed by Stark-shifting. The unprecedented range of laser intensities from 1015W cm−2to 1024W cm−2can take the interaction from the neutral atom to a bare nucleus. We have used an outer, single active electron approximation to calculate the polarization and Stark-shifted binding energy for ultraintense lasers interacting with highly charged ions at intensities from 1014W cm−2to 1022W cm−2. The polarization of the bound state can result in a dipole moment and Stark shift that may be 0.1 e a0and 50 Eh, respectively. At these high intensities, relativistic effects must also be considered. Across the intensity range of these studies, the magnetic field of the laser does not comparably affect the bound state of the atom; the impact of polarization and Stark shift exceed changes to the bound state wave function and binding energy from including relativity.  more » « less
Award ID(s):
2110462
PAR ID:
10647026
Author(s) / Creator(s):
; ; ; ; ;
Publisher / Repository:
IOP Publishing
Date Published:
Journal Name:
Journal of Physics: Conference Series
Volume:
2894
Issue:
1
ISSN:
1742-6588
Page Range / eLocation ID:
012007
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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