Non-equilibrium Green s function based model for dephasing in quantum transport

TL;DR

This paper introduces a simple phenomenological model for incorporating incoherent dephasing in quantum transport, allowing independent adjustment of phase and momentum relaxation, enhancing simulation flexibility.

Contribution

It presents a novel, flexible phenomenological approach for modeling dephasing in quantum transport that separates phase and momentum relaxation effects.

Findings

Model allows independent tuning of phase and momentum relaxation.

Numerical results demonstrate the model's flexibility.

Retains simplicity of existing phenomenological models.

Abstract

The objective of this paper is to describe a simple phenomenological approach for including incoherent dephasing processes in quantum transport models. The presented illustrative numerical results show this model provides the flexibility of adjusting the degree of phase and momentum relaxation independently that is not currently available in mesoscopic physics and in device simulations while retaining the simplicity of other phenomenological models.