Gibbs Ensembles of Nonintersecting Paths

Details Gibbs Ensembles of Nonintersecting Paths Gibbs Ensembles of Nonintersecting Paths

2008-04-03

arxiv.org/abs/0804.0564v1

Physics

Mathematical Physics

6 figures

Scientific paper

We consider a family of determinantal random point processes on the two-dimensional lattice and prove that members of our family can be interpreted as a kind of Gibbs ensembles of nonintersecting paths. Examples include probability measures on lozenge and domino tilings of the plane, some of which are non-translation-invariant. The correlation kernels of our processes can be viewed as extensions of the discrete sine kernel, and we show that the Gibbs property is a consequence of simple linear relations satisfied by these kernels. The processes depend on infinitely many parameters, which are closely related to parametrization of totally positive Toeplitz matrices.

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