2 papers
hep-th2026
Causality and realizability of local operations in quantum field theory
Jan Mandrysch, Robin Simmons, Miguel Navascues
As noted by Sorkin, regarding quantum instruments whose Kraus operators are localizable within some spacetime region as operations accessible therein leads to superluminal communic…
quant-ph2025
Factorisation conditions and causality for local measurements in QFT
Robin Simmons, Maria Papageorgiou, Marios Christodoulou +1
Quantum operations that are perfectly admissible in non-relativistic quantum theory can enable signalling between spacelike separated regions when naively imported into quantum fie…