Cavity-mediated all-to-all interactions in a solid-state 171Yb3+:CaWO4 ensemble enable superradiance, one-axis twisting, and gap-protected coherence extending Ramsey times from microseconds to milliseconds.
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Exact Pauli-detecting codes form continuous connected families in a variance geometry parameterized by λ* from Knill-Laflamme conditions, with stabilizer codes occupying only discrete measure-zero subsets.
Experimental demonstration of higher-order photon correlations controlled by the number of quantum emitters in a waveguide QED system, scaling to three emitters.
Two electrically tunable quantum dots coupled through a bidirectional waveguide form a radiatively coupled artificial molecule whose emission direction is switched by driving phase, yielding directional single photons and photon pairs.
Quantum Mpemba effect in Markovian open quantum systems can be realized via decoherence-free subspaces with decay rates that scale exponentially with system size, plus subtleties revealed by Davies map unravelings.
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Realization of waveguide many-body quantum optics
Experimental demonstration of higher-order photon correlations controlled by the number of quantum emitters in a waveguide QED system, scaling to three emitters.