RT Journal Article
T1 Accelerated relaxation and suppressed dynamic heterogeneity in a kinetically constrained (East) model with swaps
A1 Gutiérrez Díez, Ricardo
A1 Garrahan, Juan P.
A1 Jack, Robert L.
AB 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.
PB IOP Science
YR 2019
FD 2019-09-02
LK https://hdl.handle.net/10016/32025
UL https://hdl.handle.net/10016/32025
LA eng
NO RLJ thanks Ludovic Berthier for helpful discussions about swap dynamics. This work was funded by EPSRC Grants No. EP/M014266/1 and EP/R04421X/1. RG is grateful for the computing resources and technical support provided by CRESCO/ENEAGRID High Performance Computing infrastructure (funded by ENEA, the Italian National Agency for New Technologies, Energy and Sustainable Economic Development, and by Italian and European research programmes) and its staff.
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RD 27 jul. 2024