Spectral functions of 2-D quantum spin liquids

Laurens Vanderstraeten (Ghent U)

Sep 15. 2022, 15:45 — 16:30

In this talk I will discuss two methodological advances for evaluating spectral functions with matrix product states, viz. performing time evolution directly in momentum space and the use of higher-order matrix product operators for representing the time-evolution operator. I will present recent results on the spectral function of the J1-J2 Heisenberg model and the Hubbard model, both on the triangular lattice.

Further Information
ESI Boltzmann Lecture Hall
Associated Event:
Tensor Networks: Mathematical Structures and Novel Algorithms (Thematic Programme)
Frank Pollmann (TU Munich)
Norbert Schuch (U of Vienna)
Frank Verstraete (Ghent U)