Application of Kramers-Henneberger transformation in Dirac equation under high-frequency intense laser fields

Yayun Zhang; Jiaxiang Wang; Wenjun Zhu

doi:10.11884/HPLPB201527.111010

Application of Kramers-Henneberger transformation in Dirac equation under high-frequency intense laser fields

Yayun Zhang
, Jiaxiang Wang^*
, Wenjun Zhu

^*Corresponding author for this work

School of Physics and Electronic Science

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

Abstract

By using the Kramers-Henneberger (KH) transformation, the time-dependent Dirac equation in high-frequency (HF) intense laser fields can be changed to a time-independent equation with an effective Coulomb potential, which plays an important role in studying the adiabatic atomic stability problem in high-frequency laser fields. With numerical method, we have investigated in detail the characteristics of the obtained effective Coulomb potential. It has been found that when the laser intensity is high enough, the relativistic effect is so important that it modifies the effective potential drastically. Moreover, the dipole approximation, which is often used in literature when solving Schrodinger equation, is not proper for high-frequency laser fields.

Original language	English
Article number	111010
Journal	Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams
Volume	27
Issue number	11
DOIs	https://doi.org/10.11884/HPLPB201527.111010
State	Published - 1 Nov 2015

Keywords

Effective Coulomb potential
Intense laser field
Non-dipole approximation
Relativistic effects

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title = "Application of Kramers-Henneberger transformation in Dirac equation under high-frequency intense laser fields",

abstract = "By using the Kramers-Henneberger (KH) transformation, the time-dependent Dirac equation in high-frequency (HF) intense laser fields can be changed to a time-independent equation with an effective Coulomb potential, which plays an important role in studying the adiabatic atomic stability problem in high-frequency laser fields. With numerical method, we have investigated in detail the characteristics of the obtained effective Coulomb potential. It has been found that when the laser intensity is high enough, the relativistic effect is so important that it modifies the effective potential drastically. Moreover, the dipole approximation, which is often used in literature when solving Schrodinger equation, is not proper for high-frequency laser fields.",

keywords = "Effective Coulomb potential, Intense laser field, Non-dipole approximation, Relativistic effects",

author = "Yayun Zhang and Jiaxiang Wang and Wenjun Zhu",

year = "2015",

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doi = "10.11884/HPLPB201527.111010",

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journal = "Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams",

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TY - JOUR

T1 - Application of Kramers-Henneberger transformation in Dirac equation under high-frequency intense laser fields

AU - Zhang, Yayun

AU - Wang, Jiaxiang

AU - Zhu, Wenjun

PY - 2015/11/1

Y1 - 2015/11/1

N2 - By using the Kramers-Henneberger (KH) transformation, the time-dependent Dirac equation in high-frequency (HF) intense laser fields can be changed to a time-independent equation with an effective Coulomb potential, which plays an important role in studying the adiabatic atomic stability problem in high-frequency laser fields. With numerical method, we have investigated in detail the characteristics of the obtained effective Coulomb potential. It has been found that when the laser intensity is high enough, the relativistic effect is so important that it modifies the effective potential drastically. Moreover, the dipole approximation, which is often used in literature when solving Schrodinger equation, is not proper for high-frequency laser fields.

AB - By using the Kramers-Henneberger (KH) transformation, the time-dependent Dirac equation in high-frequency (HF) intense laser fields can be changed to a time-independent equation with an effective Coulomb potential, which plays an important role in studying the adiabatic atomic stability problem in high-frequency laser fields. With numerical method, we have investigated in detail the characteristics of the obtained effective Coulomb potential. It has been found that when the laser intensity is high enough, the relativistic effect is so important that it modifies the effective potential drastically. Moreover, the dipole approximation, which is often used in literature when solving Schrodinger equation, is not proper for high-frequency laser fields.

KW - Effective Coulomb potential

KW - Intense laser field

KW - Non-dipole approximation

KW - Relativistic effects

UR - https://www.scopus.com/pages/publications/84948675600

U2 - 10.11884/HPLPB201527.111010

DO - 10.11884/HPLPB201527.111010

M3 - 文章

AN - SCOPUS:84948675600

SN - 1001-4322

VL - 27

JO - Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams

JF - Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams

IS - 11

M1 - 111010

ER -

Application of Kramers-Henneberger transformation in Dirac equation under high-frequency intense laser fields

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Keywords

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