Year: 2026
Type: article
Abstract: This work introduces a method to assess the impact of specific quantum states in nonequilibrium Green’s function (NEGF)-based transport simulations. The method allows one or several selected states to be removed from the NEGF calculations while preserving the contributions of all other states. This targeted filtering enables a state-resolved analysis of quantum transport. The approach is demonstrated on 1D and 2D transport systems in effective mass models and on the surface states of GaAs quantum well in atomistic tight-binding representation. The density, density of states, and transmission results show the disappearance of the contributions of the selected states, whereas all other states remain unaffected. This approach provides a new diagnostic capability within the general NEGF framework.
Authors: Manas Pratap, Logan Melican, Tillmann Kubis
Institution: Purdue University West Lafayette
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,390
Funder: Purdue University
OpenAlex ID: W7140098650