Magnetic control of quantum entanglement through Casimir vacuum engineering

We demonstrate controllable quantum entanglement through magnetically tuned Casimir cavities, bridging fundamental vacuum physics with quantum information processing. Our Casimir-Tuned Entanglement (CTE) model shows how electromagnetic boundary conditions reshape spacelike correlations via a Lorentz-covariant kernel, yielding controllable entanglement while preserving microcausality. Grounded in algebraic quantum field theory, the framework links experimentally accessible elements: magnetically tunable qubit interactions, vacuum correlation scaling, and entanglement saturation dynamics. With all parameters independently calibrated, the model yields falsifiable predictions with no additional free parameters at the prediction stage. By connecting rigorous theory to concrete observables, CTE establishes vacuum engineering as a platform-independent pathway from fundamental field theory to emerging quantum technologies.