Return to Colloquia & Seminar listing

### Random domino tilings with many parameters

**Mathematical Physics & Probability**

Speaker: | Leo Petrov, University of Virginia |

Location: | 2112 MSB |

Start time: | Wed, Oct 6 2021, 4:10PM |

Determinantal point processes are well-known for describing multipoint behavior in \beta=2 random matrix models. The sine process is the universal determinantal process appearing in the bulk of the spectrum of random matrices. There is a discrete version of the sine process depending on one parameter, and also its extension to two dimensions. The two-dimensional process is a unique (Sheffield 2003) translation invariant ergodic Gibbs measure on point configurations in Z^2 of a given slope. We introduce a generalization of the two-dimensional discrete sine process which in addition depends on four bi-infinite sequences of real parameters associated with the horizontal and the vertical coordinate directions (two sequences per each direction). We obtain this generalization as a bulk limit of a certain random domino tiling model coming from the fully inhomogeneous free fermion six vertex model. Based on the joint project https://arxiv.org/abs/2109.06718 with A. Aggarwal, A. Borodin, and M. Wheeler