Qubit ZooLandmark dual-rail photonic experiment demonstrating a probabilistic all-optical CNOT gate built from linear optics and post-selection. It established that entangling logic between dual-rail qubits was experimentally reachable without native optical nonlinearities, even though the gate was not deterministic.
Key Results
- Implemented a post-selected CNOT gate on path-encoded dual-rail photonic qubits
- Demonstrated the gate’s entangling action by producing all four Bell states for appropriate logical inputs
- Confirmed the core LOQC idea that interference plus measurement can realize nontrivial two-qubit photonic logic
Links
- Journal: Nature