Programmable two-photon quantum interference in 10(3) channels in opaque scattering media

Tom A. W. Wolterink; Ravitej Uppu; Georgios Ctistis; Willem L. Vos; Klaus-J. Boller; Pepijn W. H. Pinkse

doi:10.1103/PhysRevA.93.053817

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Programmable two-photon quantum interference in 10(3) channels in opaque scattering media

Journal article

Peer reviewed

Programmable two-photon quantum interference in 10(3) channels in opaque scattering media

Tom A. W. Wolterink, Ravitej Uppu, Georgios Ctistis, Willem L. Vos, Klaus-J. Boller and Pepijn W. H. Pinkse

Physical review. A, Vol.93(5), 053817

05/11/2016

DOI: 10.1103/PhysRevA.93.053817

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Abstract

We investigate two-photon quantum interference in an opaque scattering medium that intrinsically supports a large number of transmission channels. By adaptive spatial phase modulation of the incident wave fronts, the photons are directed at targeted speckle spots or output channels. From 103 experimentally available coupled channels, we select two channels and enhance their transmission to realize the equivalent of a fully programmable 2 x 2 beam splitter. By sending pairs of single photons from a parametric down-conversion source through the opaque scattering medium, we observe two-photon quantum interference. The programed beam splitter need not fulfill energy conservation over the two selected output channels and hence could be nonunitary. Consequently, we have the freedom to tune the quantum interference from bunching (Hong-Ou-Mandel-like) to antibunching. Our results establish opaque scattering media as a platform for high-dimensional quantum interference that is notably relevant for boson sampling and physical-key-based authentication.

Optics

Physical Sciences

Physics

Physics, Atomic, Molecular & Chemical

Science & Technology

Details

Title: Subtitle: Programmable two-photon quantum interference in 10(3) channels in opaque scattering media
Creators: Tom A. W. Wolterink - University of Twente
Ravitej Uppu - University of Twente
Georgios Ctistis - University of Twente
Willem L. Vos - University of Twente
Klaus-J. Boller - University of Twente
Pepijn W. H. Pinkse - University of Twente
Resource Type: Journal article
Publication Details: Physical review. A, Vol.93(5), 053817
DOI: 10.1103/PhysRevA.93.053817
ISSN: 2469-9926
eISSN: 2469-9934
Publisher: Amer Physical Soc
Number of pages: 6
Grant note: Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Netherlands Organization for Scientific Research (NWO) Stichting voor de Technische Wetenschappen Stichting voor Fundamenteel Onderzoek der Materie; FOM (The Netherlands)
Language: English
Date published: 05/11/2016
Academic Unit: Physics and Astronomy
Record Identifier: 9984442011802771

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