Quantum ergodic sequences and equilibrium measures

This is partly a survey article for Constructive Approximation’s Special Issue on Approximation and Statistical Physics. It reviews results of B. Shiffman-S.Zelditch, R. Berman. S. Boucksom, D. Witt-Nystrom, T. Bloom, O. Zeitouni and others on Bergman kernels and the asymptotic equilibrium distribution of zeros of random polynomials and more general holomorphic sections of ample line bundles. The article also gives a new definition of `quantum ergodic section of a line bundle’ for Hermitian line bundles with general smooth metrics and Bernstein-Markov measurs. It proves the asymptotic equilibrium distribution of zeros of these generalizaed QE sections. It also proves that random sequences and random orthonormal bases of sections are QE.