Irreducible tripartite entanglement in free-fermion chains saturates on a slow t~L^2 timescale and its Markov gap value tracks the number of 'essential tripartite fermions' defined via a null matrix.
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Temporal fluctuations of the aSTC distinguish integrable and chaotic regimes in both closed and open long-range XYZ spin chains, retaining diagnostic power under non-Markovian noise where OTOC fails.
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Operational meaning of Markov gap in tripartite entanglement of quantum dynamics
Irreducible tripartite entanglement in free-fermion chains saturates on a slow t~L^2 timescale and its Markov gap value tracks the number of 'essential tripartite fermions' defined via a null matrix.
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Quantum mutual information as a robust probe of integrability in open quantum systems
Temporal fluctuations of the aSTC distinguish integrable and chaotic regimes in both closed and open long-range XYZ spin chains, retaining diagnostic power under non-Markovian noise where OTOC fails.