Lecture by Dr. Viktor Eisler "Entanglement Hamiltonians in quantum many-body physics"

Entanglement Hamiltonians in quantum many-body physics

Abstract:

Entanglement properties in many-body ground states are encoded in the entanglement Hamiltonian, and its study has received increased attention recently, both on the theoretical and experimental side. The seminal results of Bisognano and Wichmann and its generalizations yield explicit results for relativistic or conformal field theories in various geometries. However, it is far from obvious how these results generalize to lattice systems, where the relativistic symmetry is explicitly broken. In this talk I will present recent results on the entanglement Hamiltonian in free-fermion systems, and show how these can be reconciled with the CFT treatment of the problem. I will discuss the case of inhomogeneous systems, and also present some tractable out-of-equilibrium situations.

Wednesday, 15^th of October, 15:00, HS 05.12