56 citations · 166 across the 13 of their papers we have counts for
7 papers · 1 filter
Yu-Shiba-Rusinov states of single magnetic molecule in an superconductor
Saurabh Pradhan, Jonas Fransson
We use the numerical renormalization group theory to investigate the Yu-Shiba-Rusinov (YSR) bound state properties of single magnetic molecules placed in an s-wave superconducting…
Strongly anharmonic collective modes in a coupled electron-phonon-spin problem
Sauri Bhattacharyya, Sankha Subhra Bakshi, Saurabh Pradhan +1
We solve for the finite temperature collective mode dynamics in the Holstein-double exchange problem, using coupled Langevin equations for the phonon and spin variables. We present…
Time-dependent potential impurity in topological insulator
Saurabh Pradhan, Jonas Fransson
We consider periodically driven potential impurities coupled to the surface states of a two-dimensional topological insulator. The problem is addressed by means of two models, out…
Modeling dynamical phonon fluctuations across the magnetically driven polaron crossover in the manganites
Sauri Bhattacharyya, Saurabh Pradhan, Pinaki Majumdar
We investigate the dynamical structure factor associated with lattice fluctuations in a model that approximates the manganites. It involves electrons strongly coupled to core spins…
Thermal dynamics of lattice modes near a polaronic crossover: from the dilute polaron limit to a charge ordered state
Sauri Bhattacharyya, Saurabh Pradhan, Pinaki Majumdar
We provide a comprehensive solution to the lattice dynamics problem in the two dimensional Holstein model at finite electron density and finite temperature. We work in the physical…
Effect of site dilution in the two-dimensional attractive Hubbard model
Saurabh Pradhan, G. Venketeswara Pai
We study the percolative superconducting transition as the density of randomly placed attractive centers grows in a host metal. Employing the Hubbard-Stratanovich transformation fo…
The Holstein-Hubbard Model at Half-filling : A Static Auxiliary Field Study
Saurabh Pradhan, G. Venketeswara Pai
We study the Holstein-Hubbard model at half filling to explore the ordered phases such as the charge density wave and antiferromagnet. The Coulomb interaction is rewritten in terms…