5 papers · 1 filter
Voter Dynamics on an Ising Ladder: Coarsening and Persistence
Prabodh Shukla
Coarsening and persistence of Ising spins on a ladder is examined under voter dynamics. The density of domain walls decreases algebraically with time as for sequential a…
Hysteresis in Ferromagnetic Random Field Ising Model with an Arbitrary Initial State
Prabodh Shukla, R Kharwanlang
We present exact expressions for hysteresis loops in the ferromagnetic random field Ising model in the limit of zero temperature and zero driving frequency for an arbitrary initial…
Random Field Ising Model
Prabodh Shukla
Recent work on random field Ising model is described briefly emphasizing exact solutions of the model in simple cases and their relevance in understanding equilibrium and non-equil…
Domains and Interfaces in Random Fields
Prabodh Shukla
We analyze the energetics of domains and interfaces in the presence of quenched random fields, particularly at the lower critical dimension of the random field Ising model. The rel…
Driven Random Field Ising Model: some exactly solved examples in threshold activated kinetics
Prabodh Shukla
The random field Ising model driven by a slowly varying uniform external field at zero temperature provides a caricature of several threshold activated systems. In this model, the…