info:eu-repo/semantics/article
Relation between scattering-matrix and Keldysh formalisms for quantum transport driven by time-periodic fields
Fecha
2006-12Registro en:
Arrachea, Liliana del Carmen; Moskalets, Michael; Relation between scattering-matrix and Keldysh formalisms for quantum transport driven by time-periodic fields; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 74; 24; 12-2006; 245322-245332
1098-0121
CONICET Digital
CONICET
Autor
Arrachea, Liliana del Carmen
Moskalets, Michael
Resumen
We present the relation between the Floquet scattering matrix and the nonequilibrium Green's function formalisms to transport theory in noninteracting electronic systems in contact to reservoirs and driven by time-periodic fields. We present a translation formula that expresses the Floquet scattering matrix in terms of a Fourier transform of the retarded Green's function. We prove that such representation satisfies the fundamental identities of transport theory. We also present the "adiabatic" approximation to the dc current in the language of the Keldysh formalism. © 2006 The American Physical Society.