The χ=24 framework predicts a specific monochromatic gravitational wave from K3 surface breathing modes. Detection validates the framework; null result falsifies it completely. This provides the most direct experimental test of the theory.
Extremely narrow bandwidth (Δf/f ≈ 10⁻⁴)
Pure scalar polarization (breathing mode)
Detectable by LISA sensitivity curve
Phase-coherent over observation time
K3 surfaces admit natural breathing mode oscillations of their geometric structure:
The K3 metric oscillates coherently with characteristic frequency ω_K3.
The breathing frequency emerges from K3 moduli space geometry:
The 20-dimensional Kähler moduli space M_K3 has natural metric:
where K is the Kähler potential and t^i are moduli coordinates.
The lowest eigenmode of the moduli space Laplacian gives:
This determines the fundamental oscillation frequency.
Relating to the truncated octahedron microstructure:
The K3 breathing mode couples to spacetime curvature through:
where the K3 breathing contributes a stress-energy tensor:
The characteristic strain amplitude at Earth distance r_⊕:
With K3 oscillation energy E_K3 ~ (Planck scale)⁴ × (cosmic volume):
This yields the predicted amplitude h₀ ~ 10⁻²¹.
The LISA strain noise spectral density at our predicted frequency:
For a monochromatic signal with observation time T:
With our predicted values:
Strong detection expected (SNR >> 5)
Continuous monitoring of 3.200 ± 0.010 mHz band with:
Distinguish scalar from tensor polarizations:
Verify persistent phase coherence over observation period:
Easy to distinguish: Frequency evolution and tensor polarization differ from our monochromatic scalar prediction
Clearly different: Strong frequency evolution and orbital dynamics incompatible with constant frequency
Fundamentally different: Broadband vs monochromatic, stochastic vs coherent
The K3 breathing mode prediction is uniquely characterized by:
Δf/f ≈ 10⁻⁴, far narrower than any astrophysical source
No tensor components (h× = 0), unlike all conventional GW sources
Phase-locked over observation period, not decaying or chirping
3.2000 ± 0.0003 mHz from first principles, no free parameters
No monochromatic gravitational wave signal at 3.200 mHz
Expected: Detector noise only in frequency band
K3 breathing mode signal present
Expected: Coherent monochromatic signal + noise
For a monochromatic signal in Gaussian noise:
Under H₀: Λ follows χ²(2) distribution
Under H₁: Λ follows non-central χ²(2, λ) with λ = (SNR)²
The predicted signal would constitute an overwhelming detection with negligible probability of false positive.
Accounting for searching over frequency range:
Even with trials correction, detection remains highly significant.