
What can be done with help on NEGF formalism as final year BSc project?
Closed  Responses: 0
I have been studying the nanoelectronics lectures by Dr. Supriyo Datta & also followed his NanohubU course Fandamentals of Nanoelectronics II. So far it's the knowledge I have about nanoelectronics & …
http://nanohub.org/answers/question/1073

How to consider electronphoton interaction w/o using selfenergy?
Closed  Responses: 0
Hi, In negf, interactions are considered as selfenergies. For electronphoton interaction, a perturbation Hamiltonian is derived and then selfenergy is found using coupledfield theory. Now, my …
http://nanohub.org/answers/question/799

Sign of imaginary part of selfenergy for hole Hamiltonian
Closed  Responses: 0
Prof Datta in his QTAT Exercise Ch8, discusses that the imaginary part of the contact selfenergy should be negative while the real part will tend towards zero for large energies in both directions. …
http://nanohub.org/answers/question/575

how do we impose G<(x,x) to be pure immaginary?
Open  Responses: 1
According to KadanoffBaym book, formula (22), one has: = i G
http://nanohub.org/answers/question/254

NEGF Formulism Question
Open  Responses: 1
Hi, I'm not too familiar with the NEGF formalism. But had a very basic question. I've read that NEGF can be viewed as a "Quantum Boltzmann Equation". When taking moments of the classical …
http://nanohub.org/answers/question/8

Timedependent NEGF
Open  Responses: 1
In the timedependent NEGF equation, given a sigma_in(t,t') due to the dot, I am getting an IV equation that is making it difficult for me to group terms. For instance, looking at the analogue of …
http://nanohub.org/answers/question/6

Quantum dots
Open  Responses: 1
What I want to do is building an aluminum quantum dot coupled to aluminum leads to observe Coulomb Blockade. To form the tunnel barriers we oxidize the Al in a plasma without any detailed knowledge …
http://nanohub.org/answers/question/2