Fluctuation-dissipation violations in mean-field non-reciprocal spin glasses
arXiv:2607.25782
2026
Dynamics
1 ideas extracted · analyzed Aug 31, 2026
What the math gives to ML
The paper identifies a transferable mechanism in which non-reciprocal couplings split dynamics into dissipative and rotational components. Stable time-translationally invariant states can relax exponentially while violating fluctuation-dissipation, and sufficiently strong antisymmetric coupling creates damped oscillations rather than monotone relaxation. A neural-network optimizer can use a controlled skew component in its update Jacobian, with its strength limited by a spectral stability condition and monitored through response-covariance mismatch.
Ideas from this paper
△ Mechanism confirmed, baseline not beaten
2026
Add a controlled antisymmetric component to the local parameter update so optimization can circulate around ill-conditioned valleys instead of moving only along gradient directions. The symmetric component supplies dissipation, while the skew component produces the oscillatory non-reciprocal response predicted by the paper. Adapt the skew strength only while the estimated discrete-time dynamics remain stable.
Useful7/10
Difficulty6/10
Novelty7/10