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arXiv · 1905.06389

Dynamical enhancement of symmetries in many-body systems

Kartiek Agarwal·Ivar Martin
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Abstract

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.

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BibTeXRIS

Kartiek Agarwal, Ivar Martin. 2019-05-15. Dynamical enhancement of symmetries in many-body systems. https://doi.org/10.1103/physrevlett.125.080602

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