Researchers utilized Hong–Ou–Mandel interferometry to measure delays beyond the typical photon coherence limit, achieving single-measurement path-delay sensing with attosecond precision.
20 Attosecond Delays Show Quantum Behavior Beyond Photon Coherence Limit
Researchers utilized Hong–Ou–Mandel interferometry to measure delays beyond the typical photon coherence limit, achieving single-measurement path-delay sensing with attosecond precision.