136 citations · 451 across the 8 of their papers we have counts for
8 papers
Pseudogap and antiferromagnetic correlations in the Hubbard model
Alexandru Macridin, Mark Jarrell, Thomas Maier +2
Using the dynamical cluster approximation and quantum monte carlo we calculate the single-particle spectra of the Hubbard model with next-nearest neighbor hopping . In the unde…
Phase separation in the Hubbard model
A. Macridin, M. Jarrell, Th. Maier
Phase separation in the Hubbard model is investigated with the dynamical cluster approximation. We find that it is present in the paramagnetic solution for values of filling smalle…
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…