Parquet approximation for the 4x4 Hubbard cluster (2009)
Yang, S. X., Fotso, H., Liu, J., Maier, T. A., Tomko, K., D'Azevedo, E. F., ...
We present a numerical solution of the parquet approximation (PA), a conserving diagrammatic approach which is self-consistent at both the single-particle and the two-particle levels. The fully...
Origin of Gap Anisotropy in Spin Fluctuation Models of the Fe-pnictides (2009)
Maier, T. A., Graser, S., Scalapino, D. J., Hirschfeld, P. J.
We discuss the large gap anisotropy found for the A1g (s-wave) state in RPA spin-fluctuation and functional renormalization group calculations and show how the simple arguments leading to isotropic...
Neutron Scattering Resonance and the Fe-pnictide Superconducting Gap (2009)
Maier, T. A., Graser, S., Scalapino, D. J., Hirschfeld, P.
The existence of a neutron scattering resonance at a wavevector q* implies a sign change of the gap between two Fermi surface regions separated by wavevector q* . For the Fe pnictides, a resonance...
Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides (2008)
Graser, S., Maier, T. A., Hirschfeld, P. J., Scalapino, D. J.
Weak-coupling approaches to the pairing problem in the iron pnictide superconductors have predicted a wide variety of superconducting ground states. We argue here that this is due both to the...
Insensitivity of superconductivity to disorder in the cuprates (2008)
Kemper, A. F., Maier, T. A., Jarrell, M., Hirschfeld, P. J., Cheng, H-P.
Using a dynamical cluster quantum Monte Carlo approximation, we investigate the effect of local disorder on the stability of d-wave superconductivity including the effect of electronic correlations...
Kent, P. R. C., Saha-Dasgupta, T., Jepsen, O., Andersen, O. K., Macridin, A., Maier, T. A., ...
Using a combined local density functional theory (LDA-DFT) and quantum Monte Carlo (QMC) dynamic cluster approximation approach, the parameter dependence of the superconducting transition temperature...
Suppression of d-wave superconductivity in the checkerboard Hubbard model (2008)
Macridin, A., Maier, T. A., Jarrell, M., Pruschke, Th.
Using a dynamical cluster quantum Monte Carlo approximation we investigate the d-wave superconducting transition temperature $T_c$ in the doped 2D repulsive Hubbard model with a weak inhomogeneity....
Neutron scattering as a probe of the Fe-pnicitide superconducting gap (2008)
Maier, T. A., Scalapino, D. J.
Inelastic neutron scattering provides a probe for studying the spin and momentum structure of the superconducting gap. Here, using a two-orbital model for the Fe-pnicitide superconductors and an...
Pairing Glue in the Hubbard and t-J Models (2008)
Maier, T. A., Poilblanc, D., Scalapino, D. J.
The question of whether one should speak of a "pairing glue" in the Hubbard and t-J models is basically a question about the dynamics of the pairing interaction. If the dynamics of the pairing...
Maier, T. A., Macridin, A., Jarrell, M., Scalapino, D. J.
A dynamic cluster quantum Monte Carlo algorithm is used to study a spin susceptibility representation of the pairing interaction for the two-dimensional Hubbard model with an on-site Coulomb...
Maier, T. A., Jarrell, M., Scalapino, D. J.
Using numerical dynamic cluster quantum Monte Carlo results, we study a simple approximation for the pairing interaction of a two-dimensional Hubbard model with an on-site Coulomb interaction $U$...
Understanding High-Temperature Superconductors with Quantum Cluster Theories (2006)
Maier, T. A., Jarrell, M. S., Scalapino, D. J.
Quantum cluster theories are a set of approaches for the theory of correlated and disordered lattice systems, which treat correlations within the cluster explicitly, and correlations at longer length...
The Pairing Interaction in the 2D Hubbard Model (2006)
Maier, T. A., Jarrell, M., Scalapino, D. J.
A dynamic cluster quantum Monte Carlo approximation is used to study the effective pairing interaction of a 2D Hubbard model with a near neighbor hopping $t$ and an on-site Coulomb interaction $U$ ....
Spectral Properties of Holstein and Breathing Polarons (2006)
Slezak, C., Macridin, A., Sawatzky, G. A., Jarrell, M., Maier, T. A.
We calculate the spectral properties of the one-dimensional Holstein and breathing polarons using the self-consistent Born approximation. The Holstein model electron-phonon coupling is momentum...
The Structure of the Pairing Interaction in the 2D Hubbard Model (2005)
Maier, T. A., Jarrell, M. S., Scalapino, D. J.
Dynamic cluster Monte Carlo calculations for the doped two-dimensional Hubbard model are used to study the irreducible particle-particle vertex responsible for $d_{x^2-y^2}$ pairing in this model....
Efficient calculation of the antiferromagnetic phase diagram of the 3D Hubbard model (2005)
Kent, P. R. C., Jarrell, M., Maier, T. A., Pruschke, Th.
The Dynamical Cluster Approximation with Betts clusters is used to calculate the antiferromagnetic phase diagram of the 3D Hubbard model at half filling. Betts clusters are a set of periodic clusters...
Systematic study of d-wave superconductivity in the 2D repulsive Hubbard model (2005)
Maier, T. A., Jarrell, M., Schulthess, T. C., Kent, P. R. C., White, J. B.
The cluster size dependence of superconductivity in the conventional two-dimensional Hubbard model, commonly believed to describe high-temperature superconductors, is systematically studied using the...
Absence of superconductivity in the 2D Hubbard model (2004)
Maier, T. A., Jarrell, M., Schulthess, T. C., White, J. B.
After receiving a number of comments and reviews from our colleagues who have suggested that our results could be greatly improved by other methods of extrapolation, we have decided to withdraw our...