Local versus Global Two-Photon Interference in Quantum Networks
- URL: http://arxiv.org/abs/2005.07219v2
- Date: Wed, 25 Nov 2020 14:31:27 GMT
- Title: Local versus Global Two-Photon Interference in Quantum Networks
- Authors: Thomas Nitsche, Syamsundar De, Sonja Barkhofen, Evan Meyer-Scott,
Johannes Tiedau, Jan Sperling, Aur\'el G\'abris, Igor Jex, and Christine
Silberhorn
- Abstract summary: We devise an approach to characterizing the interplay between classical and quantum interference of two-photon states in a network.
By controlling the phases of delocalized single photons, we manipulate the global mode structure, resulting in distinct two-photon interference phenomena.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We devise an approach to characterizing the intricate interplay between
classical and quantum interference of two-photon states in a network, which
comprises multiple time-bin modes. By controlling the phases of delocalized
single photons, we manipulate the global mode structure, resulting in distinct
two-photon interference phenomena for time-bin resolved (local) and time-bucket
(global) coincidence detection. This coherent control over the photons' mode
structure allows for synthesizing two-photon interference patterns, where local
measurements yield standard Hong-Ou-Mandel dips while the global two-photon
visibility is governed by the overlap of the delocalized single-photon states.
Thus, our experiment introduces a method for engineering distributed quantum
interferences in networks.
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