36 citations · 174 across the 15 of their papers we have counts for
15 papers
Quantum latent distributions in deep generative models
Omar Bacarreza, Thorin Farnsworth, Alexander Makarovskiy +6
Many successful families of generative models leverage a low-dimensional latent distribution that is mapped to a data distribution. Though simple latent distributions are often use…
Toward a Scalable Linear-Cavity Enhanced Warm-Vapor Photonic Quantum Memory
Bharath Srivathsan, Rafal Gartman, Robert J. A. Francis-Jones +2
The coherent storage, buffering and retrieval of photons in a quantum memory enables the scalable creation of photonic entangled states via linear optics and repeat-until-success,…
Resource-efficient frequency conversion for quantum networks via sequential four-wave mixing
Thomas A. Wright, Charlotte Parry, Oliver R. Gibson +2
We report a resource-efficient scheme in which a single pump laser was used to achieve frequency conversion by Bragg-scattering four-wave mixing in a photonic crystal fiber. We dem…
Spectrally pure single photons at telecommunications wavelengths using commercial birefringent optical fiber
Jasleen Lugani, Robert J. A. Francis-Jones, Joelle Boutari +1
We report a bright and tunable source of spectrally pure heralded single photons in the telecom O-Band, based on cross-polarized four wave mixing in a commercial birefringent optic…
Passive, broadband and low-frequency suppression of laser amplitude noise to the shot-noise limit using hollow-core fibre
Euan J. Allen, Giacomo Ferranti, Kristina R. Rusimova +6
We use hollow-core fibre to preserve the spectrum and temporal profile of picosecond laser pulses in CBD to suppress 2.6 dB of amplitude noise at MHz noise frequencies, to within 0…
Engineered photon-pair generation by four-wave mixing in asymmetric coupled waveguides
Robert. J. A. Francis-Jones, Thomas A. Wright, Andriy V. Gorbach +1
Third-order nonlinear processes require phase matching between the interacting fields to achieve high efficiencies. Typically in guided-wave platforms this is achieved by…
A two-way photonic interface for linking Sr+ transition at 422 nm to the telecommunications C-band
Thomas A. Wright, Robert J. A. Francis-Jones, Corin B. E. Gawith +7
We report a single-stage bi-directional interface capable of linking Sr+ trapped ion qubits in a long-distance quantum network. Our interface converts photons between the Sr+ emiss…
Resource-efficient fibre-integrated temporal multiplexing of heralded single photons
Rowan A. Hoggarth, Robert J. A. Francis-Jones, Peter J. Mosley
We present a multiplexed single photon source that re-synchronises heralded single photons generated by four-wave mixing in photonic crystal fibre using a fibre delay loop controll…
Fibre-integrated noise gating of high-purity heralded single photons
Robert J. A. Francis-Jones, Peter J. Mosley
We present an all-fibre source of high-purity heralded single photons with an integrated conditional optical gate that reduces uncorrelated noise by almost an order of magnitude. G…
Characterisation of longitudinal variation in photonic crystal fibre
Robert J. A. Francis-Jones, Peter J. Mosley
We present a method by which the degree of longitudinal variation in photonic crystal fibre (PCF) may be characterised through seeded four-wave mixing (FWM). Using an iterative num…
All-fibre multiplexed source of high-purity heralded single photons
Robert J. A. Francis-Jones, Rowan A. Hoggarth, Peter J. Mosley
Single photon sources based on spontaneous photon-pair generation have enabled pioneering experiments in quantum optics. However, their non-determinism presents a bottleneck to sca…
Temporal Loop Multiplexing: A resource efficient scheme for multiplexed photon-pair sources
Robert J. A. Francis-Jones, Peter J. Mosley
Single photons are a vital resource for photonic quantum information processing. However, even state-of-the-art single photon sources based on photon-pair generation and heralding…
Photon-pair generation in photonic crystal fibrebre with a 1.5GHz modelocked VECSEL
Oliver J. Morris, Robert J. A. Francis-Jones, Keith G. Wilcox +2
Four-wave mixing (FWM) in optical fibre is a leading technique for generating high-quality photon pairs. We report the generation of photon pairs by spontaneous FWM in photonic cry…
Characterizing the variation of propagation constants in multicore fibre
Peter J. Mosley, Itandehui Gris-Sanchez, James M. Stone +3
We demonstrate a numerical technique that can evaluate the core-to-core variations in propagation constant in multicore fibre. Using a Markov Chain Monte Carlo process, we replicat…
Exploring the limits of multiplexed photon-pair sources for the preparation of pure single-photon states
Robert J. A. Francis-Jones, Peter J. Mosley
Current sources of heralded single photons based on nonlinear optics operate in a probabilistic manner. In order to build quantum-enhanced devices based around the use of single ph…