11 citations · 41 across the 12 of their papers we have counts for
12 papers
Stochastic parametric modulation of linear and non-linear oscillators: Perturbation theory of the response function
Sourin Dey, Jayanta K. Bhattacharjee
We study a stochastically driven, damped nonlinear oscillator whose frequency is modulated by a white or coloured noise. Using diagrammatic perturbation theory, we find that in the…
Balancing a vertical stick on a stochastically driven horizontal plate : a variation on the Kapitza effect
Nachiketh M, J K Bhattacharjee
We consider the trick of balancing a vertical stick on a horizontal plate. It is shown that the horizontal stochastic driving of the point of contact can prevent the stick from fal…
Transition to Turbulence in Driven Active Matter
Aritra Das, J. K. Bhattacharjee, T. R. Kirkpatrick
A Lorenz-like model was set up recently, to study the hydrodynamic instabilities in a driven active matter system. This Lorenz model differs from the standard one in that all three…
Work probability distribution for a ferromagnet with long-ranged and short-ranged correlations
J. K. Bhattacharjee, T. R. Kirkpatrick, J. V. Sengers
Work fluctuations and work probability distributions are fundamentally different in systems with short- ranged versus long-ranged correlations. Specifically, in systems with long-r…
Wave packet dynamics for a non-linear Schrodinger equation: Qualitative changes with changes in the initial width
Sukla Pal, J. K. Bhattacharjee
The propagation of an initially Gaussian wave packet of width in a cubic non-linear Schrodinger equation with a negative coupling constant for the nonlinear term is considere…
Competing order parameters and a tricritical point with a difference
Arghya Dutta, J. K. Bhattacharjee
We propose a mean-field, phenomenological Ginzburg-Landau free energy functional with two competing order parameters for a two-component, spin-polarized Fermi gas. This free energy…