Quantum suppression law in a 3-D photonic chip implementing the Fast Fourier Transform

The identification of phenomena able to pinpoint quantum interference is attracting large interest. Indeed, a generalization of the Hong-Ou-Mandel effect valid for any number of photons and optical modes would represent an important leap ahead both from a fundamental perspective and for practical ap...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2015-08
Main Authors: Crespi, Andrea, Osellame, Roberto, Ramponi, Roberta, Bentivegna, Marco, Flamini, Fulvio, Spagnolo, Nicolò, Viggianiello, Niko, Innocenti, Luca, Mataloni, Paolo, Sciarrino, Fabio
Format: Article
Language:English
Subjects:
Diagnostic software
Diagnostic systems
Fast Fourier transformations
Fourier transforms
Interference
Interferometers
Photonics
Photons
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The identification of phenomena able to pinpoint quantum interference is attracting large interest. Indeed, a generalization of the Hong-Ou-Mandel effect valid for any number of photons and optical modes would represent an important leap ahead both from a fundamental perspective and for practical applications, such as certification of photonic quantum devices, whose computational speedup is expected to depend critically on multiparticle interference. Quantum distinctive features have been predicted for many particles injected into multimode interferometers implementing the Fourier transformation in the Fock space. In this work we develop a scalable approach for the implementation of quantum fast Fourier transform using 3-D photonic integrated interferometers, fabricated via femtosecond laser writing technique. We observe the quantum suppression of a large number of output states with 4- and 8-mode optical circuits: the experimental results demonstrate genuine quantum interference between the injected photons, thus offering a powerful tool for diagnostic of photonic platforms.
ISSN:2331-8422