Shared Information in Stationary States at Criticality

Details Shared Information in Stationary States at Criticality Shared Information in Stationary States at Criticality

2009-12-15

arxiv.org/abs/0912.2963v2

J. Stat. Mech. P03024 (2010)

Physics

Condensed Matter

Statistical Mechanics

25 pages, 12 figures

Scientific paper

We consider bipartitions of one-dimensional extended systems whose probability distribution functions describe stationary states of stochastic models. We define estimators of the shared information between the two subsystems. If the correlation length is finite, the estimators stay finite for large system sizes. If the correlation length diverges, so do the estimators. The definition of the estimators is inspired by information theory. We look at several models and compare the behavior of the estimators in the finite-size scaling limit. Analytical and numerical methods as well as Monte Carlo simulations are used. We show how the finite-size scaling functions change for various phase transitions, including the case where one has conformal invariance.

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