Now showing items 1-10 of 331
Effective action for strongly correlated electron systems
Quantum Monte Carlo study of the itinerant-localized model of strongly correlated electrons: spin-spin correlation functions
(American Physical Society, 2016-12-06)
We perform quantum Monte Carlo simulations of the itinerant-localized periodic Kondo-Heisenberg model for the underdoped cuprates to calculate the associated spin correlation functions. The strong electron correlations are ...
Impurity scattering in a strongly correlated host
(Europhysics Letters, 2008-12)
This work explores a simple approximation to describe isolated impurity scattering in a strongly correlated host. The approximation combines conventional one-electron scattering theory and the Dynamic Mean-Field Theory to ...
Recent Applications of the DMRG Method
(World Scientific, 2006-07)
Since its inception, the DMRG method has been a very powerful tool for the calculation of physical properties of low-dimensional strongly correlated systems. It has been adapted to obtain dynamical properties and to consider ...
Asymmetry between the electron- and hole-doped Mott transition in the periodic Anderson model
(American Physical Society, 2009-01)
We study the doping-driven Mott metal-insulator transition (MIT) in the periodic Anderson model set in the Mott-Hubbard regime. A striking asymmetry for electron- or hole-driven transitions is found. The electron-doped MIT ...
Numerical methods for nanoscopic systems based on density matrix renormalization
(American Scientific Publishers, 2008-12)
The Density Matrix Renormalization Group (DMRG) has become a powerful numerical method that can be applied to nanoscopic and low-dimensional strongly correlated fermionic and bosonic systems. It allows for a very precise ...
Topological quantum phase transition in strongly correlated Kondo insulators in 1D
(Papers in Physics, 2016-09)
We investigate, by means of a eld-theory analysis combined with the density-matrix renormalization group (DMRG) method, a theoretical model for a strongly correlated quantum system in one dimension realizing a topologica ...
Study of the electronic nematic phase of Sr3Ru2O7 with precise control of the applied magnetic field vector
(American Physical Society, 2013-04)
We report a study of the magnetoresistivity of high purity Sr3Ru2O7, in the vicinity of its electronic nematic phase. By employing a triple-axis (9/1/1 T) vector magnet, we were able to precisely tune both the magnitude ...
Quantum Ripples in Strongly Correlated Metals
(Amer Physical SocCollege PkEUA, 2010)
Effective treatment of charge and spin fluctuations in dynamical and static atom-surface interactions
(American Physical Society, 2009-12)
In this work we introduce a formalism that provides a good description of the correlated charge states of an atom interacting statically or dynamically with a metal surface, including realistic features of the atom-surface ...