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Hoi Kwong Lo Group

Experiment, Theory

Hoi-Kwong Lo received his PhD in Physics from Caltech in 1994. After working at the Institute for Advanced Study, Princeton, Hewlett-Packard Labs, Bristol, UK, and MagiQ Technologies, Inc, New York, NY, he joined the University of Toronto as an Associate Professor in the Department of Electrical and Computer Engineering and the Department of Physics in 2002. He was promoted to Full Professorship in 2009. During 2020-2023, he was a Chair Professor of Physics at the University of Hong Kong, where he held various administrative duties, such as Research Division Director of Physics and Astronomy, and he was designated a Co-Director of the Hong Kong Institute of Quantum Science and Technology. In 2025, he moved to the Physics Department of the National University of Singapore as a Professor of Physics and Provost’s Chair Professor (2025-2028) and a Principal Investigator of the Centre for Quantum Technologies (CQT), Singapore. Furthermore, he has co-founded Quantum Bridge Technologies, Inc, a leading quantum start-up in quantum-safe communication.

He is a Fellow of the American Physical Society, an Optica Fellow, and an IEEE Fellow. He has won various awards including the CAP-INO Medal for Outstanding Achievement in Applied Photonics (2022), the IEEE Photonics Society Quantum Electronics Award (2023), and the QCMC International Quantum Award (2024).

Hoi Kwong Lo Group

Our long-term goal is to build the future quantum internet. The quantum internet will allow secure communication with information-theoretic security, scaling quantum computing power, clock synchronization and distributed quantum sensing, among other applications. With the rise of quantum computing, the quantum internet is an indispensable category of quantum technologies.

More concretely, we work on the theory and experiment of quantum communication, quantum networks and quantum cryptography. Our medium-term goals include building novel quantum networks with untrusted relays, finding side-channels and mitigation techniques, building quantum repeater graph states towards the quantum internet, and using photonics graph states for quantum sensing and quantum computing.

We are seeking highly motivated PhD students, Research Fellows and Senior Research Fellows to join our team. If you are interested, please visit https://www.physics.nus.edu.sg/faculty/lo-hoi-kwong/ or contact Hoi-Kwong directly.

Group Members

Hoi Kwong Lo

Principal Investigator

Recent papers

Highlights

4 November 2025

Meet A CQTian: Hoi-Kwong Lo

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A pie chart showing the count of papers with CQT co-authors in 2024 by journal impact factor

Publications by CQT researchers during 2024 by journal impact factor (IF)​

A pie chart showing the nationality of CQTians by region of the world.

Nationalities of CQT staff and students as of 31 Dec 2024​

A pie chart showing the count of CQTians by categories

Count of CQT staff and students as of 31 Dec 2024​

*Admin count includes only staff directly employed within the Centre. HR, IT and procurement is supported by additional staff working across University centres.