Volume 86, Number 1, April 2009
|Number of page(s)||5|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||15 April 2009|
Fermi-edge problem in the presence of AC electric field
Department of Physics, Hong Kong University of Science and Technology - Clear Water Bay Road, Kowloon, Hong Kong
Accepted: 9 March 2009
In this paper, we study a non-equilibrium Fermi-edge problem where the system under investigation is a single electron reservoir put under an AC electric field. We show that the electron Green's function and other correlation functions in the problem can be solved and expressed exactly in terms of a well-defined integral. The qualitative behaviors of the solution is studied and compared with the situation where the impurity is coupled to more than one reservoir at different chemical potentials.
PACS: 71.27.+a – Strongly correlated electron systems; heavy fermions / 71.30.+h – Metal-insulator transitions and other electronic transitions
© EPLA, 2009
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