Floquet Hamiltonian Engineering of an Isolated Many-Body Spin System
Abstract
Controlling interactions is the key element for quantum engineering of many-body systems. Using time-periodic driving, a naturally given many-body Hamiltonian of a closed quantum system can be transformed into an effective target Hamiltonian exhibiting vastly different dynamics. We demonstrate such Floquet engineering with a system of spins represented by Rydberg states in an ultracold atomic gas. Applying a sequence of spin manipulations, we change the symmetry properties of the effective Heisenberg XYZ Hamiltonian. As a consequence, the relaxation behavior of the total spin is drastically modified. The observed dynamics can be qualitatively captured by a semi-classical simulation. Synthesising a wide range of Hamiltonians opens vast opportunities for implementing quantum simulation of non-equilibrium dynamics in a single experimental setting.
Keywords
Cite
@article{arxiv.2105.01597,
title = {Floquet Hamiltonian Engineering of an Isolated Many-Body Spin System},
author = {Sebastian Geier and Nithiwadee Thaicharoen and Clément Hainaut and Titus Franz and Andre Salzinger and Annika Tebben and David Grimshandl and Gerhard Zürn and Matthias Weidemüller},
journal= {arXiv preprint arXiv:2105.01597},
year = {2021}
}