2019/05/31 by Kartiek Agarwal, Ivar Martin · 1 citation
Physics and Astronomy · #cond-mat.stat-mech #quant-ph
paper · pdf · doi:10.1103/physrevlett.125.080602
published as Phys. Rev. Lett. 125, 080602 (2020) · 4 pages, 2 figures + references + supplementary. Close to final published version. Updated numerical results
arxiv created 2020/09/25 · arxiv updated 2020/09/29
We construct a dynamical decoupling protocol for accurately generating local and global symmetries in general many-body systems. Multiple commuting and non-commuting symmetries can be created by means of a self-similar-in-time ("polyfractal") drive. The result is an effective Floquet Hamiltonian that remains local and avoids heating over exponentially long times. This approach can be used to realize a wide variety of quantum models, and non-equilibrium quantum phases.