Time crystal embodies chimeralike state in periodically driven quantum spin system

TL;DR

This paper explores a novel chimeralike state in a periodically driven quantum spin system, combining discrete-time crystal behavior with many-body localization, and demonstrates its robustness against external perturbations.

Contribution

It introduces a new approach for realizing a DTC-DMBL chimeralike state in a disorder-free quantum spin chain, highlighting its robustness and unique coexistence of phases.

Findings

Coexistence of DTC and DMBL phases in a spin chain.

Robustness of the chimeralike state against static external fields.

Identification of a novel mechanism for chimeralike states in quantum systems.

Abstract

Chimera states are a captivating occurrence in which a system composed of multiple interconnected elements exhibits a distinctive combination of synchronized and desynchronized behavior. The emergence of these states can be attributed to the complex interdependence between quantum entanglement and the delicate balance of interactions among system constituents. The emergence of discrete-time crystal (DTC) in typical many-body periodically driven systems occurs when there is a breaking of time translation symmetry. Coexisting coupled DTC and a ferromagnetic dynamically many-body localized (DMBL) phase at distinct regions have been investigated under the controlled spin rotational error of a disorder-free spin-1/2 chain for different types of spin-spin interactions. We contribute a novel approach for the emergence of the DTC-DMBL-chimeralike state, which is robust against external static fields in a periodically driven quantum many-body system.