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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 published version, also available here: http://dx.doi.org/10.1103/PhysRevA.58.4749.
Date
1998-12-01
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American Physical Society
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Telnov, Dmitry A. & Chu, Shih-I. "Generalized Floquet formulation of time-dependent current-density-functional theory." Phys. Rev. A 58, 4749 – Published 1 December 1998. http://dx.doi.org/10.1103/PhysRevA.58.4749.