Dynamical Enhancement of Symmetries in Many-Body Systems
Kartiek Agarwal, Ivar Martin
Abstract
We construct a dynamical decoupling protocol for accurately generating local and global symmetries in general many-body systems. Multiple commuting and noncommuting 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 nonequilibrium quantum phases.
Topics & Concepts
Homogeneous spacePhysicsDynamical systems theoryStatistical physicsTheoretical physicsQuantum mechanicsMathematicsGeometryQuantum many-body systemsAdvanced NMR Techniques and ApplicationsQuantum, superfluid, helium dynamics