Report on 1803.09755v2

Abstract

We consider the full probability distribution for the transverse magnetization of a finite subsystem in the transverse field Ising chain.We derive a determinant representation of the corresponding characteristic function for general Gaussian states.We consider applications to the full counting statistics in the ground state, finite temperature equilibrium states, non-equilibrium steady states and time evolution after global quantum quenches.We derive an analytical expression for the time and subsystem size dependence of the characteristic function at sufficiently late times after a quantum quench.This expression features an interesting multiple light-cone structure.

Locations

• arXiv (Cornell University) - PDF