High-Purity Entanglement of Hot Propagating Modes Using Nonreciprocity
L. Orr, Saeed A. Khan, Nils Buchholz, Shlomi Kotler, A. Metelmann · PRX Quantum · 2023
Continuous-variable entanglement of propagating modes can be made robust against thermal fluctuations by using a clever approach based on nonreciprocity; a method ideally suited for parametric circuit QED implementations.