234 citations · 430 across the 7 of their papers we have counts for
7 papers
Understanding the Heavy Fermion Phenomenology from Microscopic Model
Ping Sun, Gabriel Kotliar
We solve the 3D periodic Anderson model via two impurity DMFT. We obtain the temperature v.s. hybridization phase diagram. In approaching the quantum critical point (QCP) both the…
Consequences of the local spin self-energy approximation on the heavy Fermion quantum phase transition
Ping Sun, Gabriel Kotliar
We show, using the periodic Anderson model, that the local spin self-energy approximation, as implemented in the extended dynamical mean field theory (EDMFT), results in a first or…
Many-Body Approximation Scheme Beyond GW
Ping Sun, Gabriel Kotliar
We explore the combination of the extended dynamical mean field theory (EDMFT) with the GW approximation (GWA); the former sums the local contributions to the self-energies to infi…
Extended Dynamical Mean Field Theory Study of the Periodic Anderson Model
Ping Sun, Gabriel Kotliar
We investigate the competition of the Kondo and the RKKY interactions in heavy fermion systems. We solve a periodic Anderson model using Extended Dynamical Mean Field Theory (EDMFT…
Extended Dynamical Mean Field Theory and GW method
Ping Sun, Gabriel Kotliar
We develop the extended dynamical mean field theory (E-DMFT) with a view towards realistic applications. {\bf 1)} We introduce an intuitive derivation of the E-DMFT formalism. By i…
Analytic approach to the one-dimensional spin-Peierls system in the entire frequency range
Ping Sun, D. Schmeltzer, A. R. Bishop
We use the two cut-off renormalization group (RG) method to study the spin-Peierls model in one-dimension for the entire phonon frequency range. We integrate out the phonon and sol…