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cond-mat.stat-mech2026
Cross-Spectral Witness for Hidden Nonequilibrium Beyond the Scalar Ceiling
Yuda Bi, Vince D Calhoun
Partial observation is a pervasive obstacle in nonequilibrium physics: coarse graining may absorb hidden forcing into an apparently equilibrium-like reduced description, so a drive…
cond-mat.stat-mech2026
Timescale Coalescence Makes Hidden Persistent Forcing Spectrally Dark
Yuda Bi, Chenyu Zhang, Vince D Calhoun
Under coarse observation, unresolved slow forcing can remain dynamically active yet locally invisible to reduced spectral inference. For a solvable driven AR benchmark, the lo…