Suppression of X-Ray Heating in CSL Models via Relativistic Coloured Noise

Addressing the heating problem in naive Continuous Spontaneous Localization (CSL) models, where the standard white noise approximation leads to divergent energy
production and unobserved spontaneous X-ray emission. Using a relativistic coloured noise field with a Lorentzian spectral cut-off characterized by a time scale τc,
we demonstrate a mechanism to suppress high frequency excitations. We derive the energy transfer rate for charged fermions and show that for τc comparable to the proposed emergent motion threshold, the heating rate in the X-ray regime is suppressed by eight orders of magnitude, reconciling CSL predictions with current experimental bounds.