Detecting topology through dynamics in interacting fermionic wires
Quantum Gases
2020-08-06 v2 Strongly Correlated Electrons
Abstract
We describe a protocol to read out the topological invariant of interacting 1D chiral models, based on measuring the mean chiral displacement of time-evolving bulk excitations. We present analytical calculations and numerical Matrix Product State simulations of interacting Su-Schrieffer-Heeger (SSH) chains, demonstrating how the mean chiral displacement allows to distinguish between topological insulator, trivial insulator and symmetry-broken phases. Finally, we provide an experimental blueprint for realizing a model displaying these three phases and describe how to detect those.
Cite
@article{arxiv.2001.09074,
title = {Detecting topology through dynamics in interacting fermionic wires},
author = {Andreas Haller and Pietro Massignan and Matteo Rizzi},
journal= {arXiv preprint arXiv:2001.09074},
year = {2020}
}
Comments
replaced with revised version