192 citations · 452 across the 10 of their papers we have counts for
7 papers · 1 filter
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…
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…
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…
Electron transport in an open mesoscopic metallic ring
Dibyendu Roy
We study electron transport in a normal-metal ring modeled by the tight binding lattice Hamiltonian, coupled to two electron reservoirs. First, Buttiker's model of incorporating in…
Random-phase reservoir and a quantum resistor: The Lloyd model
Dibyendu Roy, N. Kumar
We introduce phase disorder in a 1D quantum resistor through the formal device of `fake channels' distributed uniformly over its length such that the out-coupled wave amplitude is…
Electron transport in a one dimensional conductor with inelastic scattering by self-consistent reservoirs
Dibyendu Roy, Abhishek Dhar
We present an extension of the work of D'Amato and Pastawski on electron transport in a one-dimensional conductor modeled by the tight binding lattice Hamiltonian and in which inel…