Hanbury Brown–Twiss effect and classical entanglement with light carrying orbital angular momentum

Author(s): Jyrki Laatikainen, Sushil Pokharel, and Olga KorotkovaIntensity-intensity correlation of a scalar optical beam carrying orbital angular momentum (OAM) across multiple modes is decomposed into intermodal contributions, thereby linking it, within the framework of the Hanbury Brown–Twiss effect, to the underlying modal coherence structure. Upon filtering …[Phys. Rev. A 114, 043529] Published Mon Oct 26, 2026