Real-Time Electron Dynamics with Exact-Exchange Time-Dependent Density-Functional Theory

H. O. Wijewardane and C. A. Ullrich
Phys. Rev. Lett. 100, 056404 – Published 7 February 2008

Abstract

The exact exchange potential in time-dependent density-functional theory is defined as an orbital functional through the time-dependent optimized effective potential (TDOEP) method. We numerically solve the TDOEP integral equation for the real-time nonlinear intersubband electron dynamics in a semiconductor quantum well with two occupied subbands. It is found that memory effects become significant in the vicinity of intersubband resonances.

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  • Received 28 August 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.056404

©2008 American Physical Society

Authors & Affiliations

H. O. Wijewardane* and C. A. Ullrich

  • Department of Physics and Astronomy, University of Missouri, Columbia, Missouri 65211, USA

  • *Present address: Department of Physics and Astronomy, Hunter College and CUNY, New York, NY 10021, USA.

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Vol. 100, Iss. 5 — 8 February 2008

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