Ashkan Nikeghbali (Zurich)

The CUE and the Riemann zeta function: the microscopic landscape

Abstract: We provide some convergence results for the characteristic polynomial of random unitary matrices on the microscopic scale and as a consequence establish several facts about ratios of characteristic polynomials and correlations for the log of the characteristic polynomial, thus answering some open problems on that scale. These answers exhibit a natural random analytic function. We shall also give evidence about the connection between this object and the Riemann zeta function and its logarithmic derivative.