title: Two-photon path-entangled states in multimode waveguides.
abstract: We experimentally show that two-photon path-entangled states can be coherently manipulated by multimode interference in multimode waveguides. By measuring the output two-photon spatial correlation function versus the phase of the input state, we show that multimode waveguides perform as nearly ideal multiport beam splitters at the quantum level, creating a large variety of entangled and separable multipath two-photon states.
authors.affiliation: Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel. eilon.poem@weizmann.ac.il
authors.forename: Eilon
authors.initials: E
authors.lastname: Poem
authors.forename: Yehonatan
authors.initials: Y
authors.lastname: Gilead
authors.forename: Yaron
authors.initials: Y
authors.lastname: Silberberg