87 citations · 184 across the 9 of their papers we have counts for
9 papers
Spin-selective metal insulator transition in two dimensions
Shashikant Singh Kunwar, Prabuddha B. Chakraborty, R. Narayanan
The phenomenon of Anderson localization wherein non-interacting electrons are localized by quenched impurities is a subject matter that has been extremely well studied. However, lo…
Effective Hamiltonian based Monte Carlo for the BCS to BEC crossover in the attractive Hubbard model
Kanika Pasrija, Prabuddha B. Chakraborty, Sanjeev Kumar
We present an effective Hamiltonian based real-space approach for studying the weak-coupling Bardeen-Cooper-Schrieffer (BCS) to the strong-coupling Bose-Einstein condensate (BEC) c…
The role of disorder symmetry in a dirty superconductor: a Bogoliubov-deGennes (BdG) study
Sanjeev Kumar, Prabuddha B. Chakraborty
We study the effect of disorder symmetry in a disordered s-wave superconductor. We begin with an attractive Hubbard model on a two-dimensional square lattice in the presence of dia…
Thermodynamic properties of correlated fermions in lattices with spin-dependent disorder
K. Makuch, J. Skolimowski, P. B. Chakraborty +2
Motivated by the rapidly growing possibilities for experiments with ultracold atoms in optical lattices we investigate the thermodynamic properties of correlated lattice fermions i…
Magnetic properties of interacting, disordered electron systems in d=2 dimensions
Prabuddha B. Chakraborty, Krzysztof Byczuk, Dieter Vollhardt
We compute the magnetic susceptibilities of interacting electrons in the presence of disorder on a two-dimensional square lattice by means of quantum Monte Carlo simulations. Clear…
Interacting lattice electrons with disorder in two dimensions: Numerical evidence for a metal-insulator transition with a universal critical conductivity
Prabuddha B. Chakraborty, Krzysztof Byczuk, Dieter Vollhardt
The dc-conductivity of electrons on a square lattice interacting with a local repulsion in the presence of disorder is computed by means of quantum Monte Carlo simulations. We prov…