Quantum Relative Entropy and Information Flux Resolve Wavefunction Collapse in Spacelike-Separated QED Waveguides
Resolving how first-order quantum coherence and definite measurement outcomes emerge from entangled vacuum fluctuations across spacelike-separated regions is unified here by the principle that quantum relative entropy governs the energy-information flux across causal boundaries [P.~Dorau and A.~Much, Phys.~Rev.~Lett.~\...