Semiconductor Bloch-equations formalism: Derivation and application to high-harmonic generation from Dirac fermions

URN to cite this document:: urn:nbn:de:bvb:355-epub-456859
DOI to cite this document:: 10.5283/epub.45685

Wilhelm, Jan

; Groessing, Patrick ; Seith, Adrian ; Crewse, Jack ; Nitsch, Maximilian ; Weigl, Leonhard ; Schmid, Christoph P. ; Evers, Ferdinand

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Date of publication of this fulltext: 14 May 2021 04:33

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Abstract

We rederive the semiconductor Bloch equations emphasizing the close link to the Berry connection. Our rigorous derivation reveals the existence of two further contributions to the current, in addition to the frequently considered intraband and polarization-related interband terms. The extra contributions become sizable in situations with strong dephasing or when the dipole-matrix elements are ...