10 citations · 24 across the 8 of their papers we have counts for
9 papers
Persistent nonlinear Hall effect driven by parallel field across a topological phase transition and intraband sign-reversing integer quantum Hall effect
Suheel Ahmad Malik, M. A. H. Ahsan, SK Firoz Islam
We investigate the linear and nonlinear Hall effects in a two-dimensional Rashba spin-orbit coupled nodal ring electronic system. We consider both the cases of linear Hall effect,…
Novel phases in rotating Bose-condensed gas: vortices and quantum correlation
Mohd. Imran, M. A. H. Ahsan
We present the exact diagonalization study of rotating Bose-condensed gas interacting via finite-range Gaussian potential confined in a quasi-2D harmonic trap. The system of many-b…
Multi-vortex Bose-Einstein condensate: examining the role of interaction range using Gaussian potential
Md Hamid, M A H Ahsan
We present exact diagonalization study on a system of spinless bosons interacting via repulsive Gaussian potential, harmonically confined in -plane with an…
Effects of discrete topology on quantum transport across a graphene junction: A quantum gravity analogue
Naveed Ahmad Shah, Alonso Contreras-Astorga, François Fillion-Gourdeau +3
In this article, we investigate the effect of next-to-the-nearest atom hopping on Klein tunnelling in graphene. An effective quantum dynamics equation is obtained based on an emerg…
Effect of van-Hove singularities in single-walled carbon nanotube leads on transport through double quantum dot system
Haroon, M. A. H. Ahsan
The double quantum dot system with single-walled metallic armchair carbon nanotube leads has been studied using Non-equilibrium Green function in the Keldysh formalism. The effect…
Exact diagonalization study of double quantum dots in parallel geometry in zero-bandwidth limit
Haroon, M. A. H. Ahsan
Exact eigenstates of the parallel coupled double quantum dots attached to the non-interacting leads taken in zero-bandwidth limit are analytically obtained in each particle and spi…
Vortex patterns in moderately rotating Bose-condensed gas
Mohd. Imran, M. A. H. Ahsan
Using exact diagonalization, we investigate the many-body ground state for vortex patterns in a rotating Bose-condensed gas of spinless particles, confined in a quasi-two-dimen…
Ground and Low-Lying Collective States of Rotating Three-Boson System
Mohd. Imran, M. A. H. Ahsan
The ground and low-lying collective states of a rotating system of bosons harmonically confined in quasi-two-dimension and interacting via repulsive finite-range Gaussian pot…
Organization of the Hilbert Space for Exact Diagonalization of Hubbard Model
Medha Sharma, M. A. H. Ahsan
We present an alternative scheme to the widely used method of representing the basis of one-band Hubbard model through the relation given by H.…