08/20/2019 - 3:30pm

Speaker: Christoph Fischbacher (UCI)

Date/Time: 8/22/19 at 2:00 pm

Location: RH 306*

Title: On the spectrum of the XXZ chain

Abstract:  In this talk, I will introduce the Heisenberg XXZ model on 
the infinite chain. Exploiting the system's conservation of total 
magnetization one can show that the XXZ Hamiltonian is unitarily 
equivalent to a direct sum of discrete many-particle Schrödinger 
operators. I will then discuss what I know and what I don't know about 
their spectrum.