Exchange Forces in Dispersion Relations Investigated Using Circuit Relations

D. Vrinceanu; A. Z. Msezane; D. Bessis; A. Temkin

doi:10.1103/PhysRevLett.86.3256

Exchange Forces in Dispersion Relations Investigated Using Circuit Relations

D. Vrinceanu, A. Z. Msezane, D. Bessis, and A. Temkin

Phys. Rev. Lett. 86, 3256 – Published 9 April 2001

Abstract

We propose a novel method to compute in an exact manner the left-hand cut discontinuity of the electron-atom partial wave scattering amplitude in the complex energy plane within the static exchange approximation. Zero energy dispersion relations for electron-hydrogen scattering are computed numerically for illustration.

Received 27 July 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.3256

Authors & Affiliations

D. Vrinceanu^1,2, A. Z. Msezane¹, D. Bessis¹, and A. Temkin³

¹Center for Theoretical Studies of Physical Systems, Clark Atlanta University, Atlanta, Georgia 30314
²School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332
³Laboratory for Astronomy and Solar Physics, Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland 20771