Thermal Transport for Many Body Tight-Binding Models

Details Thermal Transport for Many Body Tight-Binding Models Thermal Transport for Many Body Tight-Binding Models

2002-11-24

arxiv.org/abs/cond-mat/0211538v1

Phys. Rev. B 67, 115131 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

Revtex, 9 pages including 1 figure

Scientific paper

10.1103/PhysRevB.67.115131

We clarify some aspects of the calculation of the thermal transport coefficients. For a tight-binding Hamiltonian we discuss the approximate nature of the charge current and the thermal current obtained by Peierls substitution which is also identical to the equation of motion technique. We address the issue of choosing an appropriate basis for making the Peierls construction for transport calculations. We propose a criteria for finding an optimum Wannier basis where the difference between the exact current and the approximate one is minimum. Using the equations of motion we derive the thermal current for a generalized Hubbard model with density interaction. We identify a part which is the contribution from the long range interactions to the heat current. For the Hubbard model we derive expressions for the transport coefficients in the limit of infinite dimensions.

Affiliated with

Also associated with

No associations

Rating

Thermal Transport for Many Body Tight-Binding Models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Thermal Transport for Many Body Tight-Binding Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal Transport for Many Body Tight-Binding Models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-253574