Hong, Ou and Mandel: two-photon interference timing

What changed

Measured subpicosecond arrival-time differences via two-photon interference from parametric down-conversion.

Scientific scope

The record is the exact three-author 1987 Physical Review Letters experiment. Its timing result and apparatus do not encompass every later Hong–Ou–Mandel configuration, source, metrological application or interpretation.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact three-author 1987 Physical Review Letters experiment. Its timing result and apparatus do not encompass every later Hong–Ou–Mandel configuration, source, metrological application or interpretation.

Contributors

• C. K. Hong · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
• Z. Y. Ou · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
• L. Mandel · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.

• APS page for Hong-Ou-Mandel experiment
• City University of Hong Kong scholarly record for HOM paper

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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