The SPIRAYA Framework I: A Zero-Parameter Interface Between Electromagnetic Coherence and Spacetime Geometry

We present Phase I of the SPIRAYA programme (Stochastic Process Integration Recon-
ciling Actualization Yielding Architecture). This quantitative framework is directly
derived from the core SPIRAYA philosophy. This paper posits spacetime geometry
as a coarse-grained ledger written by irreversible quantum actualization events rather than
as a fundamental continuum on which quantum fields evolve. The central dynamical hy-
pothesis is that the thermodynamic cost of actualization appears in the gravitational sector
through a history field Λeff sourced by a non-conserved (event-written) effective stress ten-
sor. Concretely, defining the event current Jν ≡ −∇μT μν
eff , the trace sector closes via the
covariant ledger relation ∇ν Λeff (x) = 8πG Jν (x), so that dark-energy-like behaviour arises
as an integral record of dissipative event activity rather than as a static vacuum contribution.
A key structural input is that actualization is anchored to the maintenance of electro-
magnetic coherence. We therefore identify the matter-to-ledger leakage efficiency with a
fixed microscopic constant locked to the fine-structure constant, ǫ ≡ 2αem ≃ 0.0146. With ǫ
fixed, the framework yields an effectively parameter-free modification of ΛCDM at the back-
ground and linear-perturbation level (beyond the usual cosmological inputs), leading to a
mild reduction of late-time growth and a shifted expansion history. For ǫ = 2αem we obtain
representative values H0 ≃ 68.4 km s−1 Mpc−1 and S8 ≃ 0.77 (including standard baryonic
feedback), easing the Hubble and growth tensions relative to baseline ΛCDM while sug-
gesting that the highest local distance-ladder inferences may probe environment-dependent
effective expansion rates in non-linear, radiatively enriched regions.
In this paper we develop the quantitative core of the unitary/event split. We intro-
duce a binary order parameter for the U-phase (unitary) and E-phase (event) modes and
derive a holographic soft gate K(S) as the unique minimizer of an information-theoretic
free-energy functional. The resulting gate takes a logistic (Fermi–Dirac-like) form controlled
by the difference between the covariant holographic entropy bound and the entanglement
entropy of a causal diamond: K → 0 in the laboratory (insulator) regime, recovering stan-
dard unitary quantum mechanics, and K = O(1) near holographic saturation, opening an
event channel. We outline how subsequent phases promote the gate to instanton-like event
pulses whose coarse-graining yields Teff and, through a unimodular-gravity kernel, imple-
ments a double filter that degravitate static vacuum contributions while retaining sensitivity
to irreversible event currents. A companion paper (SPIRAYA II) will develop the operator-
algebraic structure of collapse channels under the Standard Model gauge group and the
associated structural dark sector.