Publications (30)
Quantum Phase Estimation with Entangled Photons produced by Parametric Down Conversion
Hugo Cable, Gabriel A. Durkin
We explore the advantages offered by twin light beams produced in parametric down-conversion for precision measurement. The symmetry of these bipartite quantum states, even under l…
Bipartite Entanglement in Continuous-Variable Cluster States
Hugo Cable, Daniel E. Browne
We present a study of the entanglement properties of Gaussian cluster states, proposed as a universal resource for continuous-variable quantum computing. A central aim is to compar…
Measurement Induced Localization of Relative Degrees of Freedom
Hugo Cable, Peter L. Knight, Terry Rudolph
We present a comprehensive study, using both analytical and numerical methods, of measurement-induced localization of relational degrees of freedom. Looking first at the interferen…
Quantum-enhanced multi-parameter estimation for unitary photonic systems
Nana Liu, Hugo Cable
Precise device characterization is a fundamental requirement for a large range of applications using photonic hardware, and constitutes a multi-parameter estimation problem. Estima…
Quantum Optical Metrology of Correlated Phase and Loss
Patrick M. Birchall, Euan J. Allen, Thomas M. Stace +3
Optical absorption measurements characterize a wide variety of systems from atomic gases to \emph{in-vivo} diagnostics of living organisms. Here we study the potential of non-class…
Quantum-enhanced tomography of unitary processes
Xiao-Qi Zhou, Hugo Cable, Rebecca Whittaker +3
A fundamental task in photonics is to characterise an unknown optical process, defined by properties such as birefringence, spectral response, thickness and flatness. Amongst many…