Phys. Rev. Lett. 100, 056404 (2008) [4 pages]Real-Time Electron Dynamics with Exact-Exchange Time-Dependent Density-Functional TheoryReceived 28 August 2007; published 7 February 2008 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. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.056404
DOI:
10.1103/PhysRevLett.100.056404
PACS:
71.15.Mb, 31.15.ee, 71.45.Gm
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