Effect of long range coulomb interactions on the mott transition
We reconsider the Mott transition problem in the presence of long range Coulomb interactions. Using an extended dynamical mean field theory (DMFT) that sums an important class of diagrams absent in ordinary DMFT, we show that in the presence of Coulomb interactions, the zero temperature Mott transition is, as envisioned by Mott, discontinuous in two and three dimensions.
Chitra
R
Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08855, USA.
Kotliar
G