Dear Ted,
Yes and No. Kwant does not provide direct support for inelastic scattering.
However, you can use many approaches to model it and Kwant will provide the
input you need to complete the calculation.
- There is always the old trick due to Buttiker of the "voltage probe", where one introduces a fictitious lead to provide decoherence.
- There is a vast body of literature from people in the electronic device community who needed a microscopic model fro phonons
(en entry point might be the Purdue group or Y. M. Niquet work). Eventually, it boils down to introducing a phonon self energy who needs to be calculated self-coherently.
The same thing can be said for optical conductivity. You can take the formula from, e.g. my paper (http://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.085304) and compute them from the output of Kwant.
Best regards,
Xavier
Le 1 juil. 2014 à 00:37, Ted Pudlik
Hello,
Is it possible to use kwant to simulate incoherent transport processes (photon and phonon scattering) and compute quantities such as the optical conductivity? Has anyone ever done it?
Best wishes, Ted Pudlik Boston University