200 research outputs found
Many-body synchronization of interacting qubits by engineered ac-driving
In this work we introduce the many-body synchronization of an interacting
qubit ensemble which allows one to switch dynamically from many-body-localized
(MBL) to an ergodic state. We show that applying of -pulses with altering
phases, one can effectively suppress the MBL phase and, hence, eliminate qubits
disorder. The findings are based on the analysis of the Loschmidt echo dynamics
which shows a transition from a power-law decay to more rapid one indicating
the dynamical MBL-to-ergodic transition. The technique does not require to know
the microscopic details of the disorder.Comment: 5 pages, 4 figure
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