Classical mutual information between phase-space subsystems of a kicked top grows at about half the Lyapunov exponent in chaotic regions and slowly in regular regions, mirroring known signatures of bipartite entanglement.
Quantum-classical correspondence of entropy contours in the transition to chaos
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A Classical Analogue of Entanglement for a Kicked Top
Classical mutual information between phase-space subsystems of a kicked top grows at about half the Lyapunov exponent in chaotic regions and slowly in regular regions, mirroring known signatures of bipartite entanglement.