Overview
Understanding the fundamental limits of quantum information processing requires deep insights into quantum mechanics, information theory, and computational complexity. Our foundational research establishes the theoretical bedrock upon which practical quantum technologies are built.
We pioneer quantum Shannon theory, establishing channel capacities and communication limits in the quantum regime. Our work on resource theories, entanglement, and quantum coherence reveals the fundamental physical principles that govern quantum information processing and distinguishes quantum from classical computation.
Research Topics
Quantum Shannon Theory
Establishing fundamental limits of quantum communication and computation. Our research addresses channel capacities, rate-distortion theory, and multi-user quantum communication scenarios.
Learn MorePhysics Foundations
Exploring fundamental physical principles of quantum information. Our work on resource theories, entanglement, and coherence reveals what makes quantum information processing unique.
Learn MoreKey Contributions
- Entanglement-assisted channel capacities — Established fundamental limits for classical and quantum communication with entanglement assistance, enabling optimal coding theorems (IEEE TIT, 2008-2010)
- Quantum rate-distortion theory — Developed quantum analogues of classical rate-distortion theory, establishing optimal compression limits for quantum sources (IEEE TIT, 2013)
- Resource theories of coherence and entanglement — Established operational frameworks for quantifying and manipulating quantum resources, revealing connections between different quantum advantages (Physical Review Letters, 2016)
- One-shot quantum information theory — Developed non-asymptotic characterizations of quantum communication tasks, providing tight bounds for finite-blocklength scenarios (IEEE TIT, 2013-2021)
- Quantum hypothesis testing and entropy estimation — Created sublinear quantum algorithms for estimating von Neumann entropy and related quantities (Physical Review A, 2021)
Selected Publications
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Entanglement-assisted capacity of quantum multiple-access channelsIEEE Transactions on Information Theory 54 (7), 3078-3090, 2008
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Entanglement-assisted communication of classical and quantum informationIEEE Transactions on Information Theory 56 (9), 4682-4704, 2010
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Quantum rate distortion, reverse Shannon theorems, and source-channel separationIEEE Transactions on Information Theory 59 (1), 615-630, 2013
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Relating the Resource Theories of Entanglement and Quantum CoherencePhysical Review Letters 117, 020402, 2016
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Sublinear quantum algorithms for estimating von Neumann entropyPhysical Review A 104, 022428, 2021
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One-shot entanglement-assisted quantum and classical communicationIEEE Transactions on Information Theory 59 (3), 1929-1939, 2013