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Energetic damping in electronic transport simulations on finite systems
Author(s) -
Collet Tim,
Schmitteckert Peter
Publication year - 2015
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201400173
Subject(s) - physics , fermion , hamiltonian (control theory) , quantum electrodynamics , classical mechanics , statistical physics , quantum mechanics , mathematics , mathematical optimization
In this paper, an implementation of energetic damping for fermionic transport simulations which respects particle conservation is presented. For this, nonhermitian terms in the Hamiltonian of the system are used. After an explanation of the method, it is demonstrated studying the current over time and I/V characteristics in the noninteracting resonant level model for spinless fermions.