1999/03/31 by Yoon-Ho Kim, Maria V. Chekhova, Sergei P. Kulik +4 · 20 citations
Computer Science · Physics and Astronomy · #Amplitude #Channel (broadcasting) #Computer science #Interference (communication) #Laser #Laser-Matter Interactions and Applications #Optics #Photon #Physics #Pulse (music) #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum interference #Quantum mechanics #Quantum optics #Telecommunications #Visibility #quant-ph
paper · pdf · doi:10.1103/physreva.60.r37
published in Physical Review A 60(1), R37-R40 (American Physical Society) · two-column, 4pages, submitted to PRA, minor changes
arxiv created 1999/04/06 · openalex publication_date 1999/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report a two-photon interference effect, in which the entangled photon pairs are generated from two laser pulses well separated in time. In a single pump pulse case, interference effects did not occur in our experimental scheme. However, by introducing a second pump pulse delayed in time, quantum interference was then observed. The visibility of the interference fringes shows a dependence on the delay time between two laser pulses. The results are explained in terms of indistinguishability of biphoton amplitudes that originates from two temporally separated laser pulses.