192 citations · 452 across the 10 of their papers we have counts for
10 papers
Role of pinning potentials in heat transport through disordered harmonic chain
Dibyendu Roy, Abhishek Dhar
The role of quadratic onsite pinning potentials on determining the size (N) dependence of the disorder averaged steady state heat current <J>, in a isotopically disordered harmonic…
Langevin dynamics in crossed magnetic and electric fields: Hall and diamagnetic fluctuations
Dibyendu Roy, N. Kumar
Based on the classical Langevin equation, we have re-visited the problem of orbital motion of a charged particle in two dimensions for a normal magnetic field crossed with or witho…
Crossover from ballistic to diffusive thermal transport in quantum Langevin dynamics study of a harmonic chain connected to self-consistent reservoirs
Dibyendu Roy
Through an exact analysis using quantum Langevin dynamics, we demonstrate the crossover from ballistic to diffusive thermal transport in a harmonic chain with each site connected t…
Scattering of electrons from an interacting region
Abhishek Dhar, Diptiman Sen, Dibyendu Roy
We address the problem of transmission of electrons between two noninteracting leads through a region where they interact (quantum dot). We use a model of spinless electrons hoppin…
Heat transport in ordered harmonic lattices
Dibyendu Roy, Abhishek Dhar
We consider heat conduction across an ordered oscillator chain with harmonic interparticle interactions and also onsite harmonic potentials. The onsite spring constant is the same…
Decohering d-dimensional quantum resistance
Dibyendu Roy, N. Kumar
The Landauer scattering approach to 4-probe resistance is revisited for the case of a d-dimensional disordered resistor in the presence of decoherence. Our treatment is based on an…