2026 Timothy C. Ralph: Physics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Physics	86	2504	2380	65	64	546	36901

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Physics

2504

2380

546

36901

Overview

Timothy C. Ralph is affiliated with the University of Queensland in Australia. Their research predominantly spans the fields of Computer Science and Physics and Astronomy, focusing especially on subfields such as Artificial Intelligence, Atomic and Molecular Physics and Optics, Electrical and Electronic Engineering, Statistical and Nonlinear Physics, and Astronomy and Astrophysics.

The main topics of Timothy C. Ralph's work include:

Quantum Information and Cryptography
Quantum Mechanics and Applications
Quantum Computing Algorithms and Architecture
Neural Networks and Reservoir Computing
Optical Network Technologies
Quantum optics and atomic interactions
Cold Atom Physics and Bose-Einstein Condensates

Among their recent publications are:

"Quantum repeater for continuous-variable entanglement distribution," 2020, Physical Review A
"Generalized quantum scissors for noiseless linear amplification," 2020, Physical Review A
"Enhancing quantum teleportation efficacy with noiseless linear amplification," 2023, Nature Communications
"Composable finite-size effects in free-space continuous-variable quantum-key-distribution systems," 2021, Physical Review A
"Deterministic Preparation of Optical Squeezed Cat and Gottesman-Kitaev-Preskill States," 2024, Physical Review Letters

Timothy C. Ralph frequently publishes in venues such as:

arXiv (Cornell University)
Physical Review A
Nature Communications
Physical Review D
Physical Review Letters

Frequent collaborators include:

Matthew S. Winnel
Austin P. Lund
Joshua J. Guanzon
Nedasadat Hosseinidehaj
Ryan Aguinaldo

Best Publications

Gaussian quantum information

Christian Weedbrook;Stefano Pirandola;Raúl García-Patrón;Nicolas J. Cerf

3928
Citations
Linear optical quantum computing with photonic qubits

Pieter Kok;W. J. Munro;Kae Nemoto;T. C. Ralph

3522
Citations
A Guide to Experiments in Quantum Optics

Hans-A Bachor;Timothy C Ralph

1303
Citations
Demonstration of an all-optical quantum controlled-NOT gate.

Jeremy L O'Brien;GJ Pryde;AG White;TC Ralph

1223
Citations
Universal quantum computation with continuous-variable cluster states.

Nicolas C. Menicucci;Nicolas C. Menicucci;Peter van Loock;Mile Gu;Christian Weedbrook

902
Citations
Simplifying quantum logic using higher-dimensional Hilbert spaces

Benjamin P. Lanyon;Marco Barbieri;Marcelo P. Almeida;Thomas Jennewein;Thomas Jennewein

874
Citations
Quantum computation with optical coherent states

T. C. Ralph;A. Gilchrist;G. J. Milburn;W. J. Munro

807
Citations
Photonic Boson Sampling in a Tunable Circuit

Matthew A. Broome;Alessandro Fedrizzi;Saleh Rahimi-Keshari;Justin Dove

798
Citations
Continuous variable quantum cryptography

T. C. Ralph

709
Citations
Security of continuous-variable quantum cryptography

T. C. Ralph

680
Citations
Quantum process tomography of a controlled-NOT gate.

Jeremy L. O'Brien;Geoff Pryde;Alexei Gilchrist;Dan James

591
Citations
Large-scale silicon quantum photonics implementing arbitrary two-qubit processing

Xiaogang Qiang;Xiaogang Qiang;Xiaoqi Zhou;Jianwei Wang;Jianwei Wang;Callum M. Wilkes

552
Citations
Quantum cryptography without switching.

Christian Weedbrook;Andrew M. Lance;Warwick P. Bowen;Thomas Symul

548
Citations
Continuous variable quantum cryptography: beating the 3 dB loss limit.

Christine Silberhorn;TC Ralph;Norbert Lütkenhaus;Gerd Leuchs

466
Citations
Experimental investigation of continuous-variable quantum teleportation

Warwick P. Bowen;Nicolas Treps;Ben C. Buchler;Roman Schnabel

455
Citations
Linear optical controlled- NOT gate in the coincidence basis

T. C. Ralph;N. K. Langford;T. B. Bell;A. G. White

414
Citations
Measurement of quantum weak values of photon polarization.

G. J. Pryde;J. L. O'Brien;A. G. White;T. C. Ralph

397
Citations
Tomography of quantum detectors

J. S. Lundeen;A. Feito;H. Coldenstrodt-Ronge;K. L. Pregnell

395
Citations
Quantum Computing with Continuous-Variable Clusters

Mile Gu;Christian Weedbrook;Nicholas C. Menicucci;Nicholas C. Menicucci;Nicholas C. Menicucci;Timothy C. Ralph

376
Citations
Quantum information with continuous variables

T.C. Ralph

40
Citations