Euan J. Allen
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View article: Scheme for single-shot frequency comb absorption sensing on chip
Scheme for single-shot frequency comb absorption sensing on chip Open
Frequency comb absorption spectroscopy combined with low-noise, fast homodyne measurements provide a toolbox for ultra-sensitive absorption measurements. Integrating these schemes on photonic platforms to bring them closer to practical app…
View article: Advantage of Coherent States in Ring Resonators over Any Quantum Probe Single-Pass Absorption Estimation Strategy
Advantage of Coherent States in Ring Resonators over Any Quantum Probe Single-Pass Absorption Estimation Strategy Open
Quantum states of light have been shown to enhance precision in absorption estimation over classical strategies. By exploiting interference and resonant enhancement effects, we show that coherent-state probes in all-pass ring resonators ca…
View article: Making Music Using Two Quantum Algorithms
Making Music Using Two Quantum Algorithms Open
This document explores how to make music using quantum computing algorithms. The text is an unedited pre-publication chapter which will appear in the book "Quantum Computer Music", Miranda, E. R. (Editor). This chapters provides the backgr…
View article: Maximizing precision in saturation-limited absorption measurements
Maximizing precision in saturation-limited absorption measurements Open
Quantum fluctuations in the intensity of an optical probe is noise which limits measurement precision in absorption spectroscopy. Increased probe power can offer greater precision, however, this strategy is often constrained by sample satu…
View article: Quantum Enhanced Precision Estimation of Transmission with Bright Squeezed Light
Quantum Enhanced Precision Estimation of Transmission with Bright Squeezed Light Open
Squeezed light enables measurements with sensitivity beyond the quantum noise limit (QNL) for optical techniques such as spectroscopy, gravitational wave detection, magnetometry and imaging. Precision of a measurement -- as quantified by t…
View article: Maximising Precision in Saturation-Limited Absorption Measurements
Maximising Precision in Saturation-Limited Absorption Measurements Open
Quantum fluctuations in the intensity of an optical probe is noise which limits measurement precision in absorption spectroscopy. Increased probe power can offer greater precision, however, this strategy is often constrained by sample satu…
View article: Silicon photonics interfaced with integrated electronics for 9 GHz measurement of squeezed light
Silicon photonics interfaced with integrated electronics for 9 GHz measurement of squeezed light Open
View article: Quantum Enhanced Precision Estimation with Bright Squeezed Light
Quantum Enhanced Precision Estimation with Bright Squeezed Light Open
Squeezed light has lower quantum noise in amplitude or phase than the quantum noise limit (QNL) of classical light. This enables enhancing sensitivity -- quantified by the signal-to-noise ratio (SNR) -- to beyond the QNL in optical techniq…
View article: Approaching the quantum limit of precision in absorbance estimation using classical resources
Approaching the quantum limit of precision in absorbance estimation using classical resources Open
The utility of transmission measurement has made it a target for quantum\nenhanced measurement strategies. Here we find if the length of an absorbing\nobject is a controllable variable, then via the Beer-Lambert law, classical\nstrategies …
View article: Quantum Optical Metrology of Correlated Phase and Loss
Quantum Optical Metrology of Correlated Phase and Loss Open
Optical absorption measurements characterize a wide variety of systems from atomic gases to in vivo diagnostics of living organisms. Here we study the potential of nonclassical techniques to reduce statistical noise below the shot-noise li…
View article: Data from "Passive, broadband and low-frequency suppression of laser amplitude noise to the shot-noise limit using hollow-core fibre" Physical Review Applied (10-2019)
Data from "Passive, broadband and low-frequency suppression of laser amplitude noise to the shot-noise limit using hollow-core fibre" Physical Review Applied (10-2019) Open
Data output from experiment using hollow-core fibre to suppress classical amplitude noise in fibre laser systems. Used as basis in published work: "Passive, broadband and low-frequency suppression of laser amplitude noise to the shot-noise…
View article: Phase synchronization of baroclinic waves in a differentially heated rotating annulus experiment subject to periodic forcing with a variable duty cycle
Phase synchronization of baroclinic waves in a differentially heated rotating annulus experiment subject to periodic forcing with a variable duty cycle Open
A series of laboratory experiments in a thermally driven, rotating fluid annulus are presented that investigate the onset and characteristics of phase synchronization and frequency entrainment between the intrinsic, chaotic, oscillatory am…
View article: Advances in quantum machine learning
Advances in quantum machine learning Open
Here we discuss advances in the field of quantum machine learning. The following document offers a hybrid discussion; both reviewing the field as it is currently, and suggesting directions for further research. We include both algorithms a…