Quantum chimera states

Abstract

We study a theoretical model of closed quasi-hermitian chain of spins which exhibits quantum analogues of chimera states, i.e. long life classical states for which a part of an oscillator chain presents an ordered dynamics whereas another part presents a disordered chaotic dynamics. For the quantum analogue, the chimera behavior deals with the entanglement between the spins of the chain. We discuss the entanglement properties, quantum chaos, quantum disorder and semi-classical similarity of our quantum chimera system. The quantum chimera concept is novel and induces new perspectives concerning the entanglement of multipartite systems.

References in corpus (9)

• Chimera states: Coexistence of coherence and incoherence in networks of coupled oscillators
• Quantum synchronization of a driven self-sustained oscillator
• Entanglement tongue and quantum synchronization of disordered oscillators
• Entanglement and spin squeezing in non-Hermitian phase transitions
• Dynamics, Synchronization and Quantum Phase Transitions of Two Dissipative Spins
• Entanglement, avoided crossings and quantum chaos in an Ising model with a tilted magnetic field
• A spin chain model with non-Hermitian interaction: The Ising quantum spin chain in an imaginary field
• Synchronization in a semiclassical Kuramoto model
• Dissipative spin chains: Implementation with cold atoms and steady-state properties

Cited by in corpus (8)

• Quantum correlations and synchronization measures
• Non-identical multiplexing promotes chimera states
• Self adaptation of chimera states
• Double-layer Bose-Einstein condensates: A quantum phase transition in the transverse direction, and reduction to two dimensions
• Chimeras and clusters in networks of hyperbolic chaotic oscillators
• Scaling law of transient lifetime of chimera states under dimension-augmenting perturbations
• Chimera states in quantum mechanics
• Chimera patterns in conservative systems and ultracold atoms with mediated nonlocal hopping