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arXiv · 1712.04055

Many-body synchronization of interacting qubits by engineered ac-driving

Sergey V. Remizov·Dmitriy S. Shapiro·Alexey N. Rubtsov
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Abstract

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 $\pi$-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.

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Sergey V. Remizov, Dmitriy S. Shapiro, Alexey N. Rubtsov. 2017-12-11. Many-body synchronization of interacting qubits by engineered ac-driving. https://arxiv.org/abs/1712.04055

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