An Accelerated Multiboson Algorithm for Coulomb Gases with Dynamical Dielectric Effects

Details An Accelerated Multiboson Algorithm for Coulomb Gases with Dynamical Dielectric Effects An Accelerated Multiboson Algorithm for Coulomb Gases with Dynamical Dielectric Effects

2006-02-15

arxiv.org/abs/cond-mat/0602363v2

Phys.Rev. E73 (2006) 066711

Physics

Condensed Matter

Soft Condensed Matter

13 pages, 2 figures, fixed typos, added references

Scientific paper

10.1103/PhysRevE.73.066711

A recent reformulation [1] of the problem of Coulomb gases in the presence of a dynamical dielectric medium showed that finite temperature simulations of such systems can be accomplished on the basis of completely local Hamiltonians on a spatial lattice by including additional bosonic fields. For large systems, the Monte Carlo algorithm proposed in Ref. [1] becomes inefficient due to a low acceptance rate for particle moves in a fixed background multiboson field. We show here how this problem can be circumvented by use of a coupled particle-multiboson update procedure that improves acceptance rates on large lattices by orders of magnitude. The method is tested on a one-component plasma with neutral dielectric particles for a variety of system sizes.

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