2026 Ian A. Walmsley: Physics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Physics	106	1343	1273	121	113	713	37356

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Physics

106

1343

1273

121

113

713

37356

Research.com Recognitions

2018 - Rumford Medal, Royal Society (UK) for pioneering work in the quantum control of light and matter on ultrashort timescales
2012 - Fellow of the Royal Society, United Kingdom
2011 - Joseph F. Keithley Award For Advances in Measurement Science, American Physical Society
2000 - Fellow of American Physical Society (APS) Citation For contributions to methods for quantum state measurement in matter and the characterization of wave fields in general

Overview

Ian A. Walmsley is affiliated with Imperial College London in the United Kingdom. Their research spans physics and astronomy as well as computer science, with a substantial focus on atomic and molecular physics, optics, and artificial intelligence. Their work intersects with multiple areas of quantum science and optical technologies.

The main topics of their research include:

Quantum Information and Cryptography
Quantum optics and atomic interactions
Neural Networks and Reservoir Computing
Quantum Computing Algorithms and Architecture
Quantum Mechanics and Applications
Mechanical and Optical Resonators
Photonic and Optical Devices

Notable recent publications by Ian A. Walmsley include:

"Transform-Limited Photons From a Coherent Tin-Vacancy Spin in Diamond," 2020, Physical Review Letters
"The boundary for quantum advantage in Gaussian boson sampling," 2022, Science Advances
"Quantum-enhanced interferometry with large heralded photon-number states," 2020, npj Quantum Information
"Photonic Topological Mode Bound to a Vortex," 2020, Physical Review Letters
"On-chip beam rotators, adiabatic mode converters, and waveplates through low-loss waveguides with variable cross-sections," 2022, Light Science & Applications

Frequent co-authors working alongside Ian A. Walmsley include:

Raj B. Patel
G. S. Thekkadath
Jacob F. F. Bulmer
Bryn A. Bell
Patrick M. Ledingham

Publications often appear in several venues, with the following being most common:

arXiv (Cornell University)
Optics Letters
Optics Express
Quantum 2.0 Conference and Exhibition
Physical Review Letters

The scientist has received several awards including the Rumford Medal from the Royal Society (UK) in 2018 for pioneering work in quantum control of light and matter on ultrashort timescales. They were elected Fellow of the Royal Society United Kingdom in 2012, received the Joseph F. Keithley Award for Advances in Measurement Science from the American Physical Society in 2011, and became a Fellow of the American Physical Society in 2000 with a citation recognizing contributions to methods for quantum state measurement in matter and the characterization of wave fields.

Best Publications

Spectral phase interferometry for direct electric-field reconstruction of ultrashort optical pulses.

C. Iaconis;I. A. Walmsley

1768
Citations
Boson Sampling on a Photonic Chip

Justin B. Spring;Benjamin J. Metcalf;Peter C. Humphreys;W.Steven Kolthammer

985
Citations
Optimal design for universal multiport interferometers

William R. Clements;Peter C. Humphreys;Benjamin J. Metcalf;W. Steven Kolthammer

883
Citations
Heralded generation of ultrafast single photons in pure quantum states

Peter James Mosley;Jeff S Lundeen;Brian J Smith;Piotr Wasylczyk;Piotr Wasylczyk

743
Citations
Spectral information and distinguishability in type-II down-conversion with a broadband pump

W. P. Grice;I. A. Walmsley

647
Citations
The quantum technologies roadmap: a European community view

Antonio Acín;Immanuel Felix Bloch;Immanuel Felix Bloch;Harry M. Buhrman;Tommaso Calarco

641
Citations
Self-referencing spectral interferometry for measuring ultrashort optical pulses

C. Iaconis;I.A. Walmsley

639
Citations
Quantum Physics Under Control

Ian Walmsley;Herschel Rabitz

592
Citations
Continuous frequency entanglement: effective finite hilbert space and entropy control

C. K. Law;I. A. Walmsley;J. H. Eberly

588
Citations
Eliminating frequency and space-time correlations in multiphoton states

W. P. Grice;A. B. U’Ren;I. A. Walmsley

556
Citations
Optimal quantum phase estimation.

U. Dorner;R. Demkowicz-Dobrzanski;B. J. Smith;J. S. Lundeen

517
Citations
Characterization of ultrashort electromagnetic pulses

Ian A. Walmsley;Christophe Dorrer

508
Citations
Entangling Macroscopic Diamonds at Room Temperature

K. C. Lee;M. R. Sprague;B. J. Sussman;J. Nunn

457
Citations
Experimental determination of the quantum-mechanical state of a molecular vibrational mode using fluorescence tomography.

T. J. Dunn;I. A. Walmsley;S. Mukamel

440
Citations
Quantum memories - A review based on the European integrated project “Qubit Applications (QAP)”

C. Simon;C. Simon;M. Afzelius;J. Appel;A. Boyer de la Giroday

434
Citations
Towards high-speed optical quantum memories

K. F. Reim;J. Nunn;V. O. Lorenz;V. O. Lorenz;B. J. Sussman;B. J. Sussman

427
Citations
Experimental Demonstration of Quantum Effects in the Operation of Microscopic Heat Engines.

James Klatzow;Jonas N. Becker;Patrick M. Ledingham;Christian Weinzetl

406
Citations
Tomography of quantum detectors

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

395
Citations
Quantum enhanced multiple phase estimation.

Peter C. Humphreys;Marco Barbieri;Animesh Datta;Ian A. Walmsley

387
Citations
Fiber-assisted detection with photon number resolution

Daryl Achilles;Christine Silberhorn;Cezary Sliwa;Konrad Banaszek

365
Citations