Overview
Reliable quantum computation requires robust error correction, precise characterization, and scalable architectures. Our research in this area develops the theoretical foundations and practical protocols that enable fault-tolerant quantum computing.
We pioneered entanglement-assisted quantum error correction, developed quantum LDPC codes with linear-time decoders, and created efficient magic state distillation protocols. Our work on randomized benchmarking provides essential tools for characterizing noise in quantum devices, while our architecture research explores pathways to scalable fault-tolerant systems.
Research Topics
Quantum Error Correction
Developing quantum LDPC codes, entanglement-assisted codes, and magic state distillation protocols for fault-tolerant quantum computing. Our recent breakthrough includes good quantum LDPC codes with linear-time decoders.
Learn MoreRandomized Benchmarking
Characterizing noise in quantum devices through advanced benchmarking protocols. Our work addresses non-Markovian noise and provides operationally meaningful metrics for quantum device performance.
Learn MoreQuantum Architecture
Designing scalable architectures for fault-tolerant quantum computing. Our research explores code switching, magic state distillation, and resource-efficient protocols for practical quantum computation.
Learn MoreKey Contributions
- Entanglement-assisted quantum error correction — Pioneered the theory of QECC with entanglement assistance, enabling construction of quantum codes from arbitrary classical codes (Science, 2006)
- Good quantum LDPC codes with linear-time decoders — Constructed asymptotically good quantum LDPC codes with efficient decoding, a major breakthrough in quantum coding theory (STOC 2023, Nature Communications 2026)
- Constant-overhead magic state distillation — Developed magic state distillation protocols with constant overhead, crucial for practical fault-tolerant quantum computing (Nature Physics, 2025)
- Randomized benchmarking for non-Markovian noise — Extended RB theory to handle realistic non-Markovian noise, providing operationally meaningful characterizations (PRX Quantum, 2021)
Selected Publications
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Correcting quantum errors with entanglementScience 314 (5798), 436-439, 2006
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Good quantum LDPC codes with linear time decodersProceedings of STOC 2023, 905-918
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Constant-overhead magic state distillationNature Physics 21, 1842-1846, 2025
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Almost optimal geometrically local quantum LDPC codes in any dimensionNature Communications, 2026
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Randomised benchmarking for non-Markovian noisePRX Quantum 2, 040351, 2021
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General entanglement-assisted quantum error-correcting codesPhysical Review A 76 (6), 062313, 2007