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Generalized Floquet formulation of time-dependent current-density-functional theory
Telnov, Dmitry A. ; Chu, Shih-I
Telnov, Dmitry A.
Chu, Shih-I
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Abstract
We present a generalized Floquet formulation of time-dependent current-density-functional theory for nonperturbative treatment of multiphoton processes of many-electron systems in intense monochromatic electric and magnetic fields. It is shown that the time-dependent Kohn-Sham-like equation can be transformed into an equivalent time-independent Floquet Hamiltonian matrix eigenvalue problem. A procedure is outlined for the determination of the dynamical properties in bound-bound multiphoton transitions. For the case of bound-free transitions, such as the multiphoton ionization processes, we introduce the notion of complex density and complex current and present a non-Hermitian Floquet formalism for the calculation of the complex quasienergies of individual spin orbitals and total many-electron systems.
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This is the publisher's version, also available electronically from http://journals.aps.org/pra/abstract/10.1103/PhysRevA.58.4749.
Date
1998-12-01
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American Physical Society
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ChuShih-I_12-1-1998.pdf
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Telnov, Dmitry A.; Chu, Shih-I. (1998). "Generalized Floquet formulation of time-dependent current-density-functional theory." Physical Review D, 58(06):4749. http://dx.doi.org/10.1103/PhysRevA.58.4749
