Interrupted coarsening in a driven kinetically constrained Ising chain

Details Interrupted coarsening in a driven kinetically constrained Ising chain Interrupted coarsening in a driven kinetically constrained Ising chain

2002-07-15

arxiv.org/abs/cond-mat/0207367v1

Phys. Rev. E 66, 016103 (2002)

Physics

Condensed Matter

Statistical Mechanics

9 pages, 4 figures

Scientific paper

10.1103/PhysRevE.66.016103

We introduce a driven version of the 1D kinetically constrained spin chain. In its original undriven version, this model shows anomalous coarsening following a quench to a low temperature, with an equilibration time that diverges as exp(1/T^2) for T\to 0. We show that driving of constant rate gamma_dot interrupts coarsening and stabilises the chain in a state analogous to that of a coarsening chain of age 1/gamma_dot. We present an analytical theory for this steady state, and demonstrate it to be in excellent agreement with our simulation results.

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