Insider Brief
Quantum Source demonstrated a deterministic single-atom platform for generating high-fidelity polarization-entangled photon pairs in the robust quantum singlet state.
The team showed that the entangled photons maintained their fidelity after transmission through more than one kilometer of unstabilized optical fiber without active polarization control or feedback.
The technology aims to support future quantum communication networks, quantum repeaters, distributed quantum computing, and quantum internet infrastructure.
Press release – Researchers at Quantum Source Labs, an Israeli quantum computing company, in collaboration with the Israel Directorate of Defense Research & Development (DDR&D), today announced the on-demand generation of high-quality polarization-entangled photon pairs in the robust quantum singlet state. The team further demonstrated the exceptional resilience of this state by transmitting the photon pairs through more than one kilometer of standard optical fiber under arbitrary and continuously changing conditions, observing no measurable degradation in entanglement fidelity – without any active polarization stabilization, feedback, or channel calibration.
