71 citations · 115 across the 3 of their papers we have counts for
4 papers
Coulombian Disorder in Periodic Systems
E. Orignac, A. Rosso, R. Chitra +1
We study the effect of unscreened charged impurities on periodic systems. We show that the long wavelength component of the disorder becomes long ranged and dominates static correl…
Mean Field theory of the spin-Peierls transition
E. Orignac, R. Chitra
We revisit the problem of the spin-Peierls instability in a one dimensional spin-1/2 chain coupled to phonons. The phonons are treated within the mean field approximation. We use b…
Thermal transport in one-dimensional spin gap systems
E. Orignac, R. Chitra, R. Citro
We study thermal transport in one dimensional spin systems both in the presence and absence of impurities. In the absence of disorder, all these spin systems display a temperature…
Effect of coulomb long range interactions on the Mott transition
R. Chitra, G. Kotliar
We reconsider the Mott transition problem in the presence of long range Coulomb interactions. Using an extended DMFT, that sums an important class of diagrams absent in ordinary DM…