Analytical Floquet Quantum Statistics from Nonequilibrium Green's Functions
arXiv:2608.04558
2026
Dynamics
1 ideas extracted · analyzed Aug 31, 2026
What the math gives to ML
The paper provides a constructive Floquet-sideband mechanism for periodically driven open systems: a periodic micromotion operator decomposes each mode into replicas shifted by integer multiples of the drive frequency, while bath coupling produces a steady occupation that is a weighted sum of shifted equilibrium occupations. The transferable asset is a computable frequency-domain description of periodically modulated, noisy neural dynamics, together with a stability boundary determined by the Floquet monodromy operator. A promising neural implementation is a periodic state-space layer or optimizer whose micromotion is explicitly Fourier-parameterized, whose monodromy spectrum is constrained, and whose mode regularization uses the predicted sideband weights; the sideband occupation law should be treated as a falsifiable local-linear approximation rather than an exact theorem for generic SGD.
Ideas from this paper
Unverified
2026
Replace a time-invariant linear state-space transition with a periodic transition whose coefficients have a learned period T. Constrain the product of one period to be contractive, and regularize its Fourier sidebands so that periodically driven modes do not accumulate unstable resonant energy. The architecture predicts an observable stability boundary through the spectral radius of its monodromy matrix and a measurable sideband occupation profile.
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