Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:1108.3309 · Nature Photonics

Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit

Peter Shadbolt, Maria Rodas Verde, Alberto Peruzzo, Alberto Politi, Anthony Laing, Mirko Lobino, Jonathan C. F. Matthews, Mark G. Thompson, Jeremy L. O’Brien

Published Dec 11, 2011• 296 citations
arXivHTMLPDF
DOI
10.1038/nphoton.2011.283

Related papers

A Reconfigurable Photonic Chip for Generating, Manipulating and Measuring Entanglement and Mixture

Peter Shadbolt, Maria Rodas Verde, Alberto Peruzzo +6 more

We demonstrate a reconfigurable quantum photonic circuit with eight phase shifters. We use this device to generate and characterise maximally entangled two-qubit states, violate Bell inequalities, and generate single-photon mixed states.

Conference on Lasers and Electro-Optics•Jan 1, 2012•0 citations

High-performance Photonic Entanglement Generation

Xiongfeng Ma

•Oct 31, 2022•0 citations

Compact and reconfigurable silicon nitride time-bin entanglement circuit

Chunle Xiong, X. Zhang, Andri Mahendra +13 more

Photonic chip based time-bin entanglement has attracted significant attention because of its potential for quantum communication and computation. Useful time-bin entanglement systems must be able to generate, manipulate and analyze entangled photons on a photonic chip for stable, scalable and reconfigurable operation. Here we report the first time-bin entanglement photonic chip that integrates time-bin generation, wavelength demultiplexing and entanglement analysis. A two-photon interference fringe with an 88.4% visibility is measured (without subtracting any noise), indicating the high performance of the chip. Our approach, based on a silicon nitride photonic circuit, which combines the low-loss characteristic of silica and tight integration features of silicon, paves the way for scalable real-world quantum information processors.

arXiv:1506.02758•Optica•Aug 5, 2015•115 citations

Reconfigurable Quantum Circuits by Photonic Devices

Mariam Zomorodi Moghadam, Keivan Navi

Quantum Matter•Aug 1, 2016•0 citations

On-Chip Generation and Manipulation of Entangled Photons Based on Reconfigurable Lithium-Niobate Waveguide Circuits

Hongming Jin, F. M. Liu, Ping Xu +7 more

A consequent tendency toward high-performance quantum information processing is to develop the fully integrated photonic chip. Here, we report the on-chip generation and manipulation of entangled photons based on reconfigurable lithium-niobate waveguide circuits. By introducing a periodically poled structure into the waveguide circuits, two individual photon-pair sources with a controllable electro-optic phase shift are produced within a Hong-Ou-Mandel interferometer, resulting in a deterministically separated identical photon pair. The state is characterized by 92.9±0.9% visibility Hong-Ou-Mandel interference. The photon flux reaches ∼1.4×10(7) pairs nm-1 mW-1. The whole chip is designed to contain nine similar units to produce identical photon pairs spanning the telecom C and L band by the flexible engineering of nonlinearity. Our work presents a scenario for on-chip engineering of different photon sources and paves the way to fully integrated quantum technologies.

Physical Review Letters•Sep 4, 2014•338 citations

Towards quantum applications based on photonic entanglement

Panagiotis Vergyris

•Nov 28, 2017•0 citations
Photonic chip based time-bin entanglement has attracted significant attention because of its potential for quantum communication and computation. Useful time-bin entanglement systems must be able to generate, manipulate and analyze entangled photons on a photonic chip for stable, scalable and reconfigurable operation. Here we report the first time-bin entanglement photonic chip that integrates time-bin generation, wavelength demultiplexing and entanglement analysis. A two-photon interference fringe with an 88.4% visibility is measured (without subtracting any noise), indicating the high performance of the chip. Our approach, based on a silicon nitride photonic circuit, which combines the low-loss characteristic of silica and tight integration features of silicon, paves the way for scalable real-world quantum information processors.
A consequent tendency toward high-performance quantum information processing is to develop the fully integrated photonic chip. Here, we report the on-chip generation and manipulation of entangled photons based on reconfigurable lithium-niobate waveguide circuits. By introducing a periodically poled structure into the waveguide circuits, two individual photon-pair sources with a controllable electro-optic phase shift are produced within a Hong-Ou-Mandel interferometer, resulting in a deterministically separated identical photon pair. The state is characterized by 92.9±0.9% visibility Hong-Ou-Mandel interference. The photon flux reaches ∼1.4×10(7) pairs nm-1 mW-1. The whole chip is designed to contain nine similar units to produce identical photon pairs spanning the telecom C and L band by the flexible engineering of nonlinearity. Our work presents a scenario for on-chip engineering of different photon sources and paves the way to fully integrated quantum technologies.