165 citations · 658 across the 35 of their papers we have counts for
6 papers · 1 filter
Swarming in disordered environments
David A. Quint, Ajay Gopinathan
The emergence of collective motion, also known as flocking or swarming, in groups of moving individuals who orient themselves using only information from their neighbors is a very…
Vicious Lévy flights
Igor Goncharenko, Ajay Gopinathan
We study the statistics of encounters of Lévy flights by introducing the concept of vicious Lévy flights - distinct groups of walkers performing independent Lévy flights with the p…
Vicious walks with long-range interactions
Igor Goncharenko, Ajay Gopinathan
The asymptotic behaviour of the survival or reunion probability of vicious walks with short-range interactions is generally well studied. In many realistic processes, however, walk…
The out of equilibrium behavior of Casimir type fluctuation induced forces for free classical fields
David S. Dean, Ajay Gopinathan
We present a general method to study the non-equilibrium behavior of Casimir type fluctuation induced forces for classical free scalar field theories. In particular we analyze the…
The Non-equilibrium Behavior of Fluctuation Induced Forces
David S. Dean, Ajay Gopinathan
While techniques to compute thermal fluctuation induced, or pseudo-Casimir, forces in equilibrium systems are well established, the same is not true for non-equilibrium cases. We p…
Scaling Exponent for Coarsening in a 1D q-state system
Ajay Gopinathan
An exponent which characterises non-equilibrium coarsening processes is calculated in a deterministic solvable model of coarsening for a 1D q-state Potts system. We study how t…