216 citations · 837 across the 8 of their papers we have counts for
8 papers
Dynamic freezing of strongly correlated ultracold bosons
S. Mondal, D. Pekker, K. Sengupta
We study the non-equilibrium dynamics of ultracold bosons in an optical lattice with a time dependent hopping amplitude J(t)=J_0 +δJ \cos(ωt) which takes the system from a superflu…
Magnetotransport of Dirac Fermions on the surface of a topological insulator
S. Mondal, D. Sen, K. Sengupta +1
We study the properties of Dirac fermions on the surface of a topological insulator in the presence of crossed electric and magnetic fields. We provide an exact solution to this pr…
Non-equilibrium dynamics of quantum systems: order parameter evolution, defect generation, and qubit transfer
Shreyoshi Mondal, Diptiman Sen, K. Sengupta
In this review, we study some aspects of the non-equilibrium dynamics of quantum systems. In particular, we consider the effect of varying a parameter in the Hamiltonian of a quant…
Tuning the conductance of Dirac fermions on the surface of a topological insulator
S. Mondal, D. Sen, K. Sengupta +1
We study the transport properties of the Dirac fermions with Fermi velocity on the surface of a topological insulator across a ferromagnetic strip providing an exchange field…
Theory of defect production in nonlinear quench across a quantum critical point
Shreyoshi Mondal, K. Sengupta, Diptiman Sen
We study defect production in a quantum system subjected to a nonlinear power law quench which takes it either through a quantum critical or multicritical point or along a quantum…
Defect production in non-linear quench across a quantum critical point
Diptiman Sen, K. Sengupta, Shreyoshi Mondal
We show that the defect density , for a slow non-linear power-law quench with a rate and an exponent , which takes the system through a critical point characterize…