1.1k citations · 2.9k across the 18 of their papers we have counts for
18 papers
Photonic quantum simulations of coupled -symmetric Hamiltonians
Nicola Maraviglia, Patrick Yard, Ross Wakefield +9
Parity-time () symmetric Hamiltonians are generally non-Hermitian and give rise to exotic behaviour in quantum systems at exceptional points, where eigenvectors coalesce. The r…
Rapid characterisation of linear-optical networks via PhaseLift
Daniel Suess, Nicola Maraviglia, Richard Kueng +6
Linear-optical circuits are elementary building blocks for classical and quantum information processing with light. In particular, due to its monolithic structure, integrated photo…
Evaluation of graphene optical nonlinearity with photon-pair generation in graphene-on-silicon waveguides
Yuya Yonezu, Rai Kou, Hidetaka Nishi +4
We evaluate the nonlinear coefficient of graphene-on-silicon waveguides through the coincidence measurement of photon-pairs generated via spontaneous four-wave mixing. We observed…
Entanglement generation using a controlled-phase gate for time-bin qubits
Hsin-Pin Lo, Takuya Ikuta, Nobuyuki Matsuda +2
Quantum logic gates are important for quantum computations and quantum information processing in numerous physical systems. While time-bin qubits are suited for quantum communicati…
Quantum process tomography of a controlled-phase gate for time-bin qubits
Hsin-Pin Lo, Takuya Ikuta, Nobuyuki Matsuda +3
Time-bin qubits, where information is encoded in a single photon at different times, have been widely used in optical fiber and waveguide based quantum communications. With the rec…
Generation of entangled photons using an arrayed waveguide grating
Nobuyuki Matsuda, Hidetaka Nishi, Peter Karkus +5
We propose an on-chip source of entangled photon pairs that uses an arrayed-waveguide grating (AWG) with multiple nonlinear input waveguides as correlated photon pair sources. The…
Deterministic reshaping of single-photon spectra using cross-phase modulation
Nobuyuki Matsuda
The frequency conversion of light has proved to be a crucial technology for communication, spectroscopy, imaging, and signal processing. In the quantum regime, it also offers great…
Universal Linear Optics
Jacques Carolan, Chris Harrold, Chris Sparrow +13
Linear optics underpins tests of fundamental quantum mechanics and computer science, as well as quantum technologies. Here we experimentally demonstrate the longstanding goal of a…
On-chip generation and demultiplexing of quantum correlated photons using a silicon-silica monolithic photonic integration platform
Nobuyuki Matsuda, Peter Karkus, Hidetaka Nishi +4
We demonstrate the generation and demultiplexing of quantum correlated photons on a monolithic photonic chip composed of silicon and silica-based waveguides. Photon pairs generated…
Dispersion and light transport characteristics of large-scale photonic-crystal coupled nanocavity arrays
Nobuyuki Matsuda, Eiichi Kuramochi, Hiroki Takesue +1
We investigate the dispersion and transmission property of slow-light coupled-resonator optical waveguides that consist of more than 100 ultrahigh-Q photonic crystal cavities. We s…
Entangled photons from on-chip slow light
Hiroki Takesue, Nobuyuki Matsuda, Eiichi Kuramochi +1
We report the first entanglement generation experiment using an on-chip slow light device. With highly efficient spontaneous four-wave mixing enhanced by the slow light effect in a…
An on-chip coupled resonator optical waveguide single-photon buffer
Hiroki Takesue, Nobuyuki Matsuda, Eiichi Kuramochi +2
Integrated quantum optical circuits are now seen as one of the most promising approaches with which to realize single photon quantum information processing. Many of the core elemen…
Entanglement distribution over 300 km of fiber
Takahiro Inagaki, Nobuyuki Matsuda, Osamu Tadanaga +2
We report the distribution of time bin entangled photon pairs over 300 km of optical fiber. We realized this by using a high speed and high signal to noise ratio entanglement gener…
Slow light enhanced correlated photon pair generation in photonic-crystal coupled-resonator optical waveguides
Nobuyuki Matsuda, Hiroki Takesue, Kaoru Shimizu +3
We demonstrate the generation of quantum-correlated photon pairs from a Si photonic-crystal coupled-resonator optical waveguide. A slow-light supermode realized by the collective r…
Observation of optical-fiber Kerr nonlinearity at the single-photon level
Nobuyuki Matsuda, Ryosuke Shimizu, Yasuyoshi Mitsumori +2
Optical fibers have been enabling numerous distinguished applications involving the operation and generation of light, such as soliton transmission, light amplification, all-optica…
A monolithically integrated polarization entangled photon pair source on a silicon chip
Nobuyuki Matsuda, Hanna Le Jeannic, Hiroshi Fukuda +6
Integrated photonic circuits are one of the most promising platforms for large-scale photonic quantum information systems due to their small physical size and stable interferometer…
High-visibility nonclassical interference between pure heralded single photons and weak coherent photons
Rui-Bo Jin, Jun Zhang, Ryosuke Shimizu +4
We present an experiment of nonclassical interference between a pure heralded single-photon state and a weak coherent state. Our experiment is the first to demonstrate that spectra…
Quantum walks of correlated particles
Alberto Peruzzo, Mirko Lobino, Jonathan C. F. Matthews +11
Quantum walks of correlated particles offer the possibility to study large-scale quantum interference, simulate biological, chemical and physical systems, and a route to universal…