116 citations · 843 across the 25 of their papers we have counts for
25 papers
Twist-Engineered Nonlinearity in Two-Dimensional Crystals for Tailored Quantum Light
Dylan Mcleod, Fabrizio Chiriano, Francesco Graffitti +3
Van der Waals (vdW) materials enable nonlinear-optical engineering with unprecedented resolution: their strong second-order susceptibilities () and twist-tunable interlaye…
Decoy-state quantum key distribution over 227 km with a frequency-converted telecom single-photon source
Frederik Brooke Barnes, Roberto G. Pousa, Christopher L. Morrison +7
We implement a decoy-state quantum key distribution scheme using a telecom C-band single-emitter source. The decoy states are created by varying the optical excitation of the quant…
Optimised spectral purity of unfiltered photons via pump and nonlinearity shaping
Tommaso Faleo, Christopher L. Morrison, Roméo Beignon +6
Photonic quantum technologies rely on the efficient generation and interference of indistinguishable photons. Exceptional achievements in this respect have been obtained by domain…
A Large-Scale Reconfigurable Multiplexed Quantum Photonic Network
Natalia Herrera Valencia, Annameng Ma, Suraj Goel +5
Entanglement distribution in quantum networks will enable next-generation technologies for quantum-secured communications, distributed quantum computing and sensing. Future quantum…
Engineering quantum states from a spatially structured quantum eraser
Carlo Schiano, Bereneice Sephton, Roberto Aiello +8
Quantum interference is a central resource in many quantum-enhanced tasks, from computation to communication protocols. While it usually occurs between identical input photons, qua…
Hyper-entanglement between pulse modes and frequency bins
Fabrizio Chiriano, Joseph Ho, Christopher L. Morrison +4
Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols by allowing each DOF to perform the task it is optimally suite…
Single-emitter quantum key distribution over 175 km of fiber with optimised finite key rates
Christopher L. Morrison, Roberto G. Pousa, Francesco Graffitti +8
Quantum key distribution with solid-state single-photon emitters is gaining traction due to their rapidly improving performance and compatibility with future quantum network archit…
Conference key agreement in a quantum network
Alexander Pickston, Joseph Ho, Andrés Ulibarrena +6
Quantum conference key agreement (QCKA) allows multiple users to establish a secure key from a shared multi-partite entangled state. In a quantum network, this protocol can be effi…
Frequency-bin entanglement from domain-engineered down-conversion
Christopher L. Morrison, Francesco Graffitti, Peter Barrow +3
Frequency encoding is quickly becoming an attractive prospect for quantum information protocols owing to larger Hilbert spaces and increased resilience to noise compared to other p…
Quantum communication complexity beyond Bell nonlocality
Joseph Ho, George Moreno, Samuraí Brito +8
Efficient distributed computing offers a scalable strategy for solving resource-demanding tasks such as parallel computation and circuit optimisation. Crucially, the communication…
A Bright Source of Telecom Single Photons Based on Quantum Frequency Conversion
Christopher L. Morrison, Markus Rambach, Zhe Xian Koong +10
On-demand indistinguishable single photon sources are essential for quantum networking and communication. Semiconductor quantum dots are among the most promising candidates, but th…
Optimised Domain-engineered Crystals for Pure Telecom Photon Sources
Alexander Pickston, Francesco Graffitti, Peter Barrow +4
The ideal photon-pair source for building up multi-qubit states needs to produce indistinguishable photons with high efficiency. Indistinguishability is crucial for minimising erro…
Hyperentanglement in structured quantum light
Francesco Graffitti, Vincenzo D'Ambrosio, Massimiliano Proietti +5
Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protoc…
Direct generation of tailored pulse-mode entanglement
Francesco Graffitti, Peter Barrow, Alexander Pickston +2
Photonic quantum technology increasingly uses frequency encoding to enable higher quantum information density and noise resilience. Pulsed time-frequency modes (TFM) represent a un…
Reconfigurable single photon sources based on functional materials
Dmytro Kundys, Francesco Graffitti, Richard A. McCracken +2
The future of quantum photonic technology depends on the realization of efficient sources of single photons, the ideal carriers of quantum information. Parametric downconversion (P…
Measurement Device Independent Verification of Quantum Channels
Francesco Graffitti, Alexander Pickston, Peter Barrow +5
The capability to reliably transmit and store quantum information is an essential building block for future quantum networks and processors. Gauging the ability of a communication…
Enhanced Multi-Qubit Phase Estimation in Noisy Environments by Local Encoding
Massimiliano Proietti, Martin Ringbauer, Francesco Graffitti +7
The first generation of multi-qubit quantum technologies will consist of noisy, intermediate-scale devices for which active error correction remains out of reach. To exploit such d…
Experimental test of local observer-independence
Massimiliano Proietti, Alexander Pickston, Francesco Graffitti +5
The scientific method relies on facts, established through repeated measurements and agreed upon universally, independently of who observed them. In quantum mechanics, the objectiv…
Design Considerations for High-purity Heralded Single Photon Sources
Francesco Graffitti, Jérémy Kelly-Massicotte, Alessandro Fedrizzi +1
When building a parametric downconversion photon-pair source with spectrally separable photons, e.g. for making high-purity heralded single photons, two practical issues must be ac…
Creating mid-infrared single photons
Richard McCracken, Francesco Graffitti, Alessandro Fedrizzi
Single-photon creation through parametric downconversion underpins quantum technology for quantum sensing and imaging. Here we numerically study the creation of single photons in t…
Independent high-purity photons created in domain-engineered crystals
Francesco Graffitti, Peter Barrow, Massimiliano Proietti +2
Advanced photonic quantum technology relies on multi-photon interference which requires bright sources of high-purity single photons. Here, we implement a novel domain-engineering…
Assisted Macroscopic Quantumness
Farid Shahandeh, Martin Ringbauer, Massimiliano Proietti +8
It is commonly expected that quantum theory is universal, in that it describes the world at all scales. Yet, quantum effects at the macroscopic scale continue to elude our experime…
Pure down-conversion photons through sub-coherence length domain engineering
Francesco Graffitti, Dmytro Kundys, Derryck T. Reid +2
Photonic quantum technology relies on efficient sources of coherent single photons, the ideal carriers of quantum information. Heralded single photons from parametric down-conversi…
Twin GHZ-states behave differently
Gonzalo Carvacho, Francesco Graffitti, Vincenzo D'Ambrosio +2
Greenberger-Horne-Zeilinger (GHZ) states and their mixtures exhibit fascinating properties. A complete basis of GHZ-states can be constructed by properly choosing local basis rotat…