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v0.4.0 — Stuart-Landau Amplitude Engine, PAC Gating, Envelopes

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@anulum anulum released this 04 Mar 04:03
· 3451 commits to main since this release
v0.4.0
64bbaa5

Added

  • Stuart-Landau amplitude engine — StuartLandauEngine integrates coupled phase-amplitude ODEs (Acebrón et al. 2005): dr_i/dt = (μ - r²)r + ε Σ K^r_ij r_j cos(θ_j - θ_i). Euler/RK4/RK45, pre-allocated scratch, amplitude clamping, weighted order parameter.
  • Phase-amplitude coupling (PAC) — modulation_index() (Tort et al. 2010), pac_matrix(), pac_gate()
  • Modulation envelopes — extract_envelope() (sliding-window RMS), envelope_modulation_depth(), EnvelopeState
  • AmplitudeSpec in binding types; amplitude: YAML block activates Stuart-Landau mode
  • CouplingState.knm_r, CouplingBuilder.build_with_amplitude(), ImprintModel.modulate_mu()
  • LayerState.mean_amplitude, LayerState.amplitude_spread, UPDEState.mean_amplitude, UPDEState.pac_max, UPDEState.subcritical_fraction
  • CLI branches on amplitude mode, audit logger records amplitude_mode
  • ~80 new tests (total ~860)

See CHANGELOG.md for full details.

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