Floquet Hamiltonian Engineering of an Isolated Many-Body Spin System

Autor: Geier, Sebastian, Thaicharoen, Nithiwadee, Hainaut, Clément, Franz, Titus, Salzinger, Andre, Tebben, Annika, Grimshandl, David, Zürn, Gerhard, Weidemüller, Matthias
Rok vydání: 2021
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1126/science.abd9547
Popis: 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.
Databáze: arXiv
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