Distributed quantum sensing with a mode-entangled network of spin-squeezed atomic states

Quantum-enhanced differential atom interferometers and clocks with spin-squeezing swapping

“…To conclude, we notice that, after the completion of this work, a related sub-SQL differential scheme appeared [83]. There, an atomic distributed quantum sensing protocol is demonstrated experimentally by squeezing the total spin of the two interferometers, e.g.…”