Marco Tomamichel Group
Our research explores the intersection of information theory, cryptography and quantum mechanics. Our focus is the mathematical foundations of quantum information theory, for example the study of entropy and other information measures, as well as theoretical questions that arise in quantum communication and cryptography when the available resources are limited.
Information processing with finite resources: One main challenge when engineering quantum processors is that complex quantum systems are notoriously hard to prepare and control coherently. We therefore investigate quantum information processing with noisy and limited resources.
Mathematical foundations of quantum information: Progress in information theory often goes hand in hand with a more thorough understanding of the mathematical framework underlying it. We are interested, for example, in exploring various measures of entropy, information and correlation based on Rényi divergences.
Cryptography in a quantum world: Securing information against potential adversaries is a ubiquitous challenge in our modern world. We are interested in security proofs for various cryptographic schemes.
More information at our homepage: https://marcotom.info/
Professor
Department of Electrical & Computer Engineering, College of Design and Engineering, National University of Singapore
Marco Tomamichel holds a joint appointment as CQT Principal Investigator and Professor in the Department of Electrical and Computer Engineering, National University of Singapore. His research interests lie in the intersection of information theory, cryptography and quantum mechanics.
Marco received an MSc in Electrical Engineering and Information Technology from ETH Zurich in 2007. He followed his interest in quantum information to graduate with a PhD in Physics at the Institute of Theoretical Physics, also at ETH, in 2012. He came to CQT for a postdoctoral stint, then was a Research Fellow at the University of Sydney and an Associate Professor at the University of Technology Sydney before returning to NUS in 2020.
Group Members
- Marco TomamichelPrincipal Investigator
- Erkka HaapasaloSenior Research Fellow
- Ian Thomas GeorgeResearch Fellow
- Milad Moazami GoodarziResearch Fellow
- Qin MinglongResearch Fellow
- Sayantan SenResearch Fellow
- Wu JiaweiResearch Fellow
- Enrique CerveroCQT PhD Student
- Frits VerhagenCQT PhD Student
- Hu YanglinCQT PhD Student
- Josep Lumbreras ZarapicoCQT PhD Student
- Philippe Tristan EmmanuelCQT PhD Student
- Roberto RubboliCQT PhD Student
Recent papers
- Michael X. Cao, R. Jain, M. Tomamichel. (2024). Quantum Channel Simulation under Purified Distance is no more difficult than State Splitting. Proceedings of ISIT 1421-1425
- J. Lumbreras, M. Tomamichel. (2024). Linear bandits with polylogarithmic minimax regret. Proceedings of Conference on Learning Theory 247 39
- M. Tomamichel, C. Hirche. (2024). Quantum R?yi and f-divergences from integral representations. Comm. Math. Phys. 405 52
- Y.L.Hu, M. Tomamichel. (2024). Fundamental limits on quantum cloning from the no-signalling principle. Phys. Rev. A 109
- Mario Berta, M. Tomamichel. (2024). Entanglement monogamy via multivariate trace inequalities. Comm. Math. Phys. 405
- Shrigyan Brahmachari , J. Lumbreras, M. Tomamichel. (2024). Quantum contextual bandits and recommender systems for quantum data. Quantum Machine Intelligence 6 13
- Marco Fanizza, J. Lumbreras, Andreas Winter. (2024). Quantum theory in finite dimension cannot explain every general process with finite memory. Comm. Math. Phys. 405
