Accelerated relaxation and suppressed dynamic heterogeneity in a kinetically constrained (East) model with swaps

Abstract

We introduce a kinetically constrained spin model with a local softness parameter, such that spin flips can violate the kinetic constraint with an (annealed) site-dependent rate. We show that adding MC swap moves to this model can dramatically accelerate structural relaxation. We discuss the connection of this observation with the fact that swap moves are also able to accelerate relaxation in structural glasses. We analyse the rates of relaxation in the model. We also show that the extent of dynamical heterogeneity is strongly suppressed by the swap moves.

arXiv comment20 pages, accepted version

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Cited by in corpus (6)

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• Diffusion coefficient power laws and defect-driven glassy dynamics in swap acceleration
• Characterising the slow dynamics of the swap Monte Carlo algorithm
• Clever algorithms for glasses work by time reparametrization
• SWAP algorithm for lattice spin models
• Physical swap dynamics, shortcuts to relaxation and entropy production in dissipative Rydberg gases