Gauge and gravity emerge from the harmonic entanglement of the vacuum on a MERA over the three-cube \(Q_3\) (gauge) and the prism \(Q_4=Q_3\times I\) (gravity, Higgs, colour flux). One bond action on the cube fixes the couplings; one Sakharov trace on the prism fixes the gravitational constant; one master equation carries the vacuum expectation value and the string tension to the infrared.
Figure 3. From the cube to the prism. On the cube Q3 the gauge sectors sit on the geometry: the SU(3)c colour axis on the z-edges, SU(2)L on the xy-face loops, U(1)Y on the body diagonal. The temporal axis τ carries the cube to the prism Q4 = Q3 × I, two cube copies at τ = 0 and τ = 1. On the prism the gravitational constant is the whole vertex trace, the Higgs field is the temporal vertex mode, and the string tension is the colour flux on the zτ-face.
One bound, two regimes
The proposed model takes the Bekenstein–Hawking bound and the strong sector, both at the Planck scale, to be the foundational bridge between Planck-scale astrophysics and Planck-scale high-energy particle physics, by requiring both to share the same finite entanglement-capacity bound. Each bond is a harmonic oscillator carrying relative entropy \(D_{\mathrm{KL}}\) bounded by \(\log\chi=1/4\); the partition function gives \(S^{*}=2/9\) and the residual \(\xi^{*}=1/36\).
The master equation
The gravitational constant is the whole trace of the vertex operator. The vacuum expectation value is a single mode of that operator, the Higgs; the string tension is the colour flux on the edge operator. These two are carried from the Planck scale to the infrared by the descent,
with \(\Theta\) the colour representation factor, \(\Pi\) the spectral weight, and \(p\) the number of field factors (one for a scalar, two for a vector).