The NEGF method was established in the 1960’s through the classic work of Keldysh and others [1] using the methods of many- body perturbation theory (MBPT) and this approach is widely used in the literature [2]. By contrast I have introduced a different approach starting with the one-electron Schrödinger equation [3, 4] which is used by many in the nanoelectronics community. In this talk I will try to answer the questions I often get regarding the relation between the two approaches and I thank the organizers of the IWCE for giving me this opportunity.

Publication preprint is available.

IWCE 2015

[1] (a) L.V.Keldysh (1965) Diagram Technique for non-equilibrium processes. Sov.Phys. JETP 20, 1018; (b) L.P.Kadanoff, G.Baym (1962) Quantum Statistical Mechanics, Frontiers in Physics Lecture Notes, Benjamin/Cummings.

[2] See for example, G.Stefanuci, R.van Leewuen, Non-Equilibrium Many-Body Theory of Quantum Systems, Cambridge (2013) and references therein.

[3] (a) S.Datta, Electron Transport in Mesoscopic Systems, Chapter 8, Cambridge (1995); (b) Quantum Transport, Atom to Transistor, Chapter 8-10, Cambridge (2005).

[4] S.Datta, Lessons from Nanoelectronics, World Scientific (2012). II Edition planned for 2016.

Researchers should cite this work as follows:

• S. Datta, "Non-Equilibrium Green's Function (NEGF) Method: A Different Perspective," in Computational Electronics (IWCE) 2015 International Workshop on, DOI: 10.1109/IWCE.2015.7301951

• Supriyo Datta (2015), "Non-Equilibrium Green's Function (NEGF): A Different Perspective," https://nanohub.org/resources/22800.

  BibTex | EndNote

1. many-body perturbation theory
2. nanoelectronics
3. NEGF