136 citations · 451 across the 8 of their papers we have counts for
4 papers · 1 filter
Physics of cuprates with the two-band Hubbard model - The validity of the one-band Hubbard model
A. Macridin, Th. Maier, M. Jarrell +1
We calculate the properties of the two-band Hubbard model using the Dynamical Cluster Approximation. The phase diagram resembles the generic phase diagram of the cuprates, showing…
Analytic continuation of QMC data with a sign problem
A. Macridin, S. P. Doluweera, M. Jarrell +1
We present a Maximum Entropy method (MEM) for obtaining dynamical spectra from Quantum Monte Carlo data which have a sign problem. By relating the sign fluctuations to the norm of…
Absence of the d-Density Wave State in 2D Hubbard Model
Alexandru Macridin, Mark Jarrell, Thomas Maier
Using the Dynamical Cluster Approximation (DCA) we calculate the alternating circulating-current susceptibility and investigate the transition to the d-density wave (DDW) order in…
Two-dimensional Hubbard-Holstein bipolaron
Alexandru Macridin, George. A. Sawatzky, Mark Jarrell
We present a diagrammatic Monte Carlo study of the properties of the Hubbard-Holstein bipolaron on a two-dimensional square lattice. With a small Coulomb repulsion, U, and with inc…