20 September 2016
Physics Department, University of Rome Tor Vergata
Europe/Rome timezone

Non-equilibrium Random Matrix Theory and Inflation

20 Sept 2016, 15:00
45m
Grassano Room (Physics Department, University of Rome Tor Vergata)

Grassano Room

Physics Department, University of Rome Tor Vergata

Via della Ricerca Scientifica 1, 00133 Rome, Italy

Speaker

Dr Alexander Westphal (DESY)

Description

We present an analytic method for calculating the transition probability between two random Gaussian matrices with given eigenvalue spectra in the context of Dyson Brownian motion. We show that in the Coulomb gas language, in large N limit, memory of the initial state is preserved in the form of a universal linear potential acting on the eigenvalues. We compute the likelihood of any given transition as a function of time, showing that as memory of the initial state is lost, transition probabilities converge to those of the static ensemble. Then we discuss the implications of this for small-field inflation in the string theory landscape.

Presentation materials