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cond-mat.str-el2005★ 32 cited
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…
cond-mat.str-el2005
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…
cond-mat.str-el2003
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…