3 papers
cond-mat.str-el2020
Accelerated impurity solver for DMFT and its diagrammatic extensions
Corey Melnick, Patrick Sémon, Kwangmin Yu +3
We present ComCTQMC, a GPU accelerated quantum impurity solver. It uses the continuous-time quantum Monte Carlo (CTQMC) algorithm wherein the partition function is expanded in term…
cond-mat.str-el2020
Infinite-layer nickelates as Ni-eg Hund's metals
Byungkyun Kang, Corey Melnick, Patrick Semon +4
The recent and exciting discovery of superconductivity in the hole-doped infinite-layer nickelate Nd 1-δ Sr δ NiO 2 draws strong attention to correlated quantum materials. From a t…
cond-mat.str-el2020
Fermi liquid theory and divergences of the two-particle irreducible vertex in the periodic Anderson lattice
Corey Melnick, Gabriel Kotliar
Here we analyze the divergences of the irreducible vertex function in dynamical mean field theory, which may indicate either a non-physical breakdown of the perturbation theory or…