6 papers
Quantum phase transition and sliding Luttinger liquid in coupled t-J chains
S. Moukouri
Using a recently proposed perturbative numerical renormalization-group algorithm, we explore the connection between quantum criticality and the emergence of Luttinger liquid physic…
Disordered and Ordered States in a Frustrated Anisotropic Heisenberg Hamiltonian
S. Moukouri, J. V. Alvarez
We use a recently proposed perturbative numerical renormalization group algorithm to investigate ground-state properties of a frustrated three dimensional Heisenberg model on an an…
Renormalization group method for weakly coupled quantum chains: comparison with exact diagonalization
J. V. Alvarez, S. Moukouri
We show that numerical quasi-one-dimensional renormalization group allows accurate study of weakly coupled chains with modest computational effort. We perform a systematic comparis…
Accurate Computation of the Magnetic Susceptibility for the Normal Phase of Organic Conductors
S. Moukouri
The magnetic susceptibility of the quarter-filled one-dimensional extended Hubbard model is calculated using the density-matrix renormalization group technique. It is found that in…
The Dynamical Cluster Approximation: A New Technique for Simulations of Strongly Correlated Electron Systems
S. Moukouri, C. Huscroft, M. Jarrell
We present the algorithmic details of the dynamical cluster approximation (DCA) algorithm. The DCA is a fully-causal approach which systematically restores non-local correlations t…
Pseudogaps in the 2D half-filled Hubbard model
C. Huscroft, M. Jarrell, Th. Maier +2
We study the pseudogaps in the spectra of the half-filled 2D Hubbard model using both finite-size and dynamical cluster approximation (DCA) quantum Monte Carlo calculations. A char…