Quantum Source and Israel’s DDR&D Demonstrate Calibration-Free, Single-Atom Entangled Photon Source

Israeli quantum hardware developer Quantum Source Labs, in collaboration with the Israel Directorate of Defense Research & Development (DDR&D / MAFAT), has demonstrated the on-demand generation of polarization-entangled photon pairs in the robust quantum singlet Bell state. Emitted from a single rubidium atom trapped within a microscopic optical cavity, the deterministic photon pairs were transmitted through more than one kilometer of standard optical fiber under continuously changing physical conditions. The distributed entanglement arrived at its destination with no measurable loss…
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