Study of the Dressed State of Hydrogen Atom in Electron Atom Elastic Collision in Laser Field

Authors

  • K. Yadav Patan Multiple Campus, Lalitpur, Tribhuvan University, Nepal
  • S. P. Gupta Patan Multiple Campus, Lalitpur, Tribhuvan University, Nepal
  • J. J. Nakarmi Tribhuvan University, Kirtipur, Kathmandu, Nepal

DOI:

https://doi.org/10.3126/jnphyssoc.v6i2.34870

Keywords:

Dressed state, Differential cross section, scattering matrix, scattering amplitudes

Abstract

We discuss the various important aspects of the theory of electron-atom elastic collision in laser field. We analyze the collision accompanied by the transfer of  photons. We study the free electron states i.e. Volkov states and target atomic states i.e. Dressed states. We calculate the first-Born scattering matrix for electron-atom elastic collision. The present work accounts the calculation for hydrogen as target atom in soft photon limits i.e., in weak field. The dressing effect becomes significant in the region of low momentum transfer, reaches maximum of value of 25000 a.u. at momentum transfer of 0.44. This work explains that the differential cross-section does not occur very low and at very high momentum transfer. However, it occurs at moderate momentum transfer.

Downloads

Download data is not yet available.
Abstract
176
pdf
262

Author Biography

J. J. Nakarmi, Tribhuvan University, Kirtipur, Kathmandu, Nepal

Central Department of Physics

Downloads

Published

2020-12-31

How to Cite

Yadav, K., Gupta, S. P., & Nakarmi, J. J. (2020). Study of the Dressed State of Hydrogen Atom in Electron Atom Elastic Collision in Laser Field. Journal of Nepal Physical Society, 6(2), 149–157. https://doi.org/10.3126/jnphyssoc.v6i2.34870

Issue

Vol. 6 No. 2 (2020)

Section

Articles

License

All right reserved. No part of this Journal may be reproduced in any form or by any electronic or mechanical means, including information storage and retrieval system, without permission in writing from the publisher, except by a reviewer who may quote brief passage in a review. The views and interpretation in this journal are those of author(s) and they are not attributable to the NPS.