Universal Entanglement from the Unity of the Continuous Field in UD Theory
Dan Zhu
Abstract
We derive universal quantum entanglement from the unity of the continuous field in UD theory. Matter formation converts the $U$ attribute in space ($U_u$) into the $U$ attribute in matter ($D_u$) via the vertex $\lambda U_u D_d$; all $D_u$ excitations are perturbations of the same underlying $U_u$ field. The correlation function of these perturbations inherits the connectedness of space. Because the physical observable $\langle\hat S_A\hat S_B\rangle\propto e^{-m_{\rm eff}r}$, this background correlation does not yield observable Bell violation; a conditionally normalized $E=\cos\Delta\theta$ is a formal construct. When two (or more) particles originate from the same matter formation event, their $D_u$ excitations share the same $U_u$ source, and momentum conservation $\sum\mathbf{k}_a=0$ elevates the weak background correlation to strong, distance-independent multi-particle entanglement, with $\langle\mathcal{B}\rangle=2\sqrt{2}$. The measurement process is the unitary coupling of $D_u$ to $D_d$ via $\hat H_{\rm meas}=(m_0^2/8)\int d^3x\,\hat\varphi_{D_u}\hat\varphi_{D_d}$; the Born rule follows from the reduced density matrix. All results are derived from first principles without collapse postulates or adjustable parameters.