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My primary research interests deal with mathematical foundations of quantum theory and their applications in quantum measurement theory and quantum information.

According to quantum theory, different measurement devices cannot typically be applied simultaneously on the same system nor sequentially without disturbance. The operational implications of this quantum incompatibility are central to my studies. I am also working on information-theoretic questions such as conditions for asymptotic and catalytic transformations of states with limited resources.

I have previously worked as a postdoctoral researcher at Kyoto University with Professor Takayuki Miyadera and at Fudan University in Shanghai with Professor Huangjun Zhu. I got my PhD at the University of Turku under the supervision of Juha-Pekka Pellonpää and Teiko Heinosaari.

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I am broadly interested in mathematically inspired problems in quantum information theory. My current research involves entropic quantities, such as quantum conditional entropies, and topics in quantum probability, including central limit theorems for quantum systems. These problems often require advanced tools from matrix analysis and techniques from functional analysis.

Before joining this group, I was a postdoctoral fellow at the Institute for Research in Fundamental Sciences (IPM), working with Salman Beigi. Prior to that, I completed a PhD in mathematics at Shiraz University, where I worked on problems in operator algebras.

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My research interests lie at the intersection of quantum information theory, Riemannian geometry, and optimization. For example, one primary focus is solving optimization problems within quantum information using Riemannian geometric techniques. These techniques are often better suited to the geometry of quantum states than standard Euclidean approaches.

I earned my PhD at the University of Technology Sydney under the supervision of Christopher Ferrie. Prior to that, I completed a BS-MS in physics at the Indian Institute of Science Education and Research (IISER) Mohali, where my MS thesis was supervised by Sandeep Goyal.

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My field of research lies broadly in learning theory and randomized and quantum algorithms. I am currently working on learning theory and property testing, where the main focus is to design efficient sampling and query algorithms for various distribution and graph problems in classical and quantum models.

I was previously a research fellow at the School of Computing, National University of Singapore, hosted by Prof. Arnab Bhattacharyya. I did my PhD from the Indian Statistical Institute, Kolkata, under the supervision of Prof. Sourav Chakraborty.

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My primary research focus is on quantum communication and cryptographic schemes. This requires the development of new analytic and numerical tools due to the nature of quantum mechanics and its mathematical formalism. Most of my work has focused on information-theoretic methods that have been applied to, among other things, establishing the security of practical quantum cryptographic schemes, the fundamental limits of quantum communication networks, and the behaviour of dynamical systems (both classical and quantum). These works often also rely on using methods from optimization theory.

I previously obtained my PhD in Electrical and Computer Engineering at University of Illinois at Urbana-Champaign under the advisement of Eric Chitambar and my MSc in Physics― Quantum Information under the supervision of Norbert Lütkenhaus.

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My research interests include Boolean function analysis in quantum computation, quantum computational complexity, and quantum cryptography. Currently, my work focuses on quantum nonlocal games, quantum oblivious transfer, and pseudorandom unitary constructions.

I received my Ph.D. in Quantum Computing from Nanjing University, where I was advised by Professor Penghui Yao.

My research interests are the mathematical challenges of quantum information theory and their applications, in particular I‘m working on quantum optimal transport, properties of quantum relative entropies, channel majorization and hypothesis testing.

I earned my PhD at the Autonomous University of Barcelona under the supervision of Profs. John Calsamiglia and Andreas Winter. Previously, I had earned a MSc at Universität Innsbruck and a BSc also at the Autonomous University of Barcelona.

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My research interests are in quantum information theory, mathematical physics and cryptography. Within these topics, I like both the mathematical aspects as well as applications such as quantum key distribution.

Previously, I received a Master’s degree from Utrecht University in both theoretical physics and mathematics. My thesis was on a topic in string theory that used methods from graph theory. Before joining the group I was supervised by Charles Lim.

My research focuses on quantum cryptography and information theory. I am interested in the security of quantum cryptographic primitives. I am currently working on quantum codes to investigate whether they can be applied to perform verification in some cryptographic tasks.

I previously obtained my master’s degree at Telecom Paris in France where I worked on computer science and quantum information theory.

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My main area of interest is (quantum) learning theory, which naturally combines my broader interests in theoretical computer science and quantum information. Efficiently learning specific parameters of a quantum system requires insights into its information-theoretic properties, as well as the right algorithmic and statistical tools to extract them. 

Before joining the group, I completed both my MSc and BSc degrees in Physics at ETH Zürich in Switzerland, where I was fortunate to benefit from the many courses offered by the theory groups of the physics and computer science departments.

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My current research interests lie at the intersection of quantum information, fundamental physics, and security. Specifically, I focus on Absolutely Maximally Entangled (AME) states, Quantum Secret Sharing (QSS).  I am also actively exploring advanced cryptography, including passive and Measurement-Device-Independent (MDI) Quantum Key Distribution (QKD), alongside the application of Quantum Byzantine Agreement protocols in blockchain systems.

This theoretical focus builds on a diverse professional background. Six years ago, I worked in theoretical high-energy physics before transitioning to the national meteorological agency, where I served as a weather forecaster and a developer of weather forecast products. Now, I am back to doing what I love in the light of recent developments in the field of Quantum Computing.

A central motivation of my research is the need to bridge idealized security proofs with realistic experimental device characterization for the practical security evaluation of Quantum Key Distribution (QKD).

I work on numerical security proofs and proof techniques for QKD, specifically related to incorporating device imperfections — such as detector and source flaws — into security models. I am particularly keen to practically apply (and extend) theoretical results for quantum entropies, quantum instruments, and algebraic relationships. Beyond quantum information theory, this line of work allows me to collaborate with colleagues from quantum optics experiments and “classical” side-channel research. Beyond this highly applied focus, I am also interested in device-independent certification in quantum networks and new quantum cryptographic applications.

I hold a parallel appointment at Fraunhofer Singapore @ NTU as a Research Associate and Coordinator of the QUASAR-CREATE project, Thrust 2 (“Quantum Communication and QKD Security”). Previously, I completed my B.Sc. and M.Sc. at ETH Zürich specializing in quantum information theory, spent time working in consulting and project management, and earned a Master in China Studies from Peking University, where my research focused on innovation policy and geopolitics in quantum technologies.

My research interests lie in the mathematical foundations of quantum information theory. I am particularly interested in how algebraic and order-theoretic structures, such as semirings and asymptotic spectra, can be used to study information-processing tasks, resource transformations and comparison problems in quantum theory.

Alongside this theoretical work, I am involved in projects connecting these structural questions with analytical and computational methods. My current work focuses on the numerical evaluation and optimisation of quantum conditional entropies, using tools from matrix analysis, convex optimisation and manifold optimisation.

Before joining the group, I studied mathematics, philosophy and computer science at the National University of Singapore. I have also worked as a Research Assistant in statistical mechanics at NUS,  where I worked on statistical modelling and applied probability.

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Graduated with a PhD from CQT.

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Graduated with a PhD from CQT, now a postdoc at the University of Hong Kong with Yuxiang Yang.

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Graduated with a PhD from CQT, now a postoc at the University of Copenhagen with Daniel Stilck França.

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Graduated with a PhD from CQT, now a postdoc at Nanyang Technological University with Mile Gu.

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Previously a postdoc working on security/privacy using quantum resources. He now works for Huawei R&D in Singapore.

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Previously a Marie Skłodowska-Curie Global Fellowship postdoc in our group and now a Junior Professor at the Insititute for Information Processing at the University of Hannover.

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Previously a Postdoc in our group and now a professor at Xi’an Jiaotong University, China.

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Previously a Research Fellow and now doing another postdoc at RHTW Aachen with Mario Berta.

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Graduated with PhD from the University of Sydney, supervised with Steve Flammia.

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Graduated with a PhD from the University of Technology Sydney, supervised with Chris Ferrie. Now Postdoc at Royal Melbourne Institute of Technology (RMIT) in Australia.

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Graduated with a PhD from the University of Technology Sydney, supervised with Chris Ferrie. Now Postdoc at Okinawa Institute of Science and Technology, Japan.

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Graduated with a PhD from the University of Technology Sydney, supervised with Min-Hsiu Hsieh. Now Faculty at National Taiwan University, Taiwan.

Graduated with a Masters degree from the University of Technology Sydney.