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Debbie Leung

Portrait de Debbie Leung
Associate Faculty
Institute for Quantum Computing (IQC)

Area of Research:
Phone: (519) 888-4567 x33604

Research Interests

I study the capacity of communicating various form of data (quantum, private, or classical) through quantum channels, focusing on the superadditivity phenomenon. I also study how quantum entanglement, in particular, embezzlement of entanglement, plays a role in quantum information theory.

Positions Held

  • Tolman Postdoctoral Fellow in Theoretical Physics Institute for Quantum Information, Caltech December 2002 - August 2005
  • Postdoctoral Fellow in Workshop on Quantum Computation Mathematical Sciences Research Institute, Berkeley September 2002 - December 2002
  • Postdoctoral Fellow Physics of Information group IBM T.J. Watson Research Center July 2000 - August 2002

Awards

  • University Research Chair, University of Waterloo, 2015 - to date
  • Tier II Canada Research Chair in Quantum Communications, 2005-2015

Recent Publications

  • Flag fault-tolerant error correction, measurement, and quantum computation for cyclic CSS codes, T. Tansuwannont, C. Chamberland, and D. Leung, Phys. Rev. A, 101, 012342 (2020).
  • Fault-tolerant quantum error correction using error weight parities, Theerapat Tansuwannont and Debbie Leung, arXiv: 2006.03068
  • On the mixed-unitary rank of quantum channels, Mark Girard and Debbie Leung and Jeremy Levick and Chi-Kwong Li and Vern Paulsen and Yiu Tung Poon and John Watrous, arXiv: 2003.14405
  • Capacity Approaching Coding for Low Noise Interactive Quantum Communication Part I: Large Alphabets, Debbie Leung and Ashwin Nayak and Ala Shayeghi and Dave Touchette and Penghui Yao and Nengkun Yu, arXiv: 2001.02818
  • Incompressibility of classical distributions, Anurag Anshu and Debbie Leung and Dave Touchette, arXiv: 1911.09126
  • Additive entanglemement measures cannot be more than asymptotically continuous, Andrea Coladangelo and Debbie Leung, arXiv: 1910.11354

Seminars

  • Incompressibility of classical distributions, University of New Mexico USA
  • Incompressibility of classical distributions, University of Waterloo Canada
  • Embezzlement and Applications, ICMAT Autonomous University of Madrid
  • Simple proof of non-closure of quantum correlations using embezzlement, International Centre for Mathematical Sciences (ICMS) University of Edinburgh UK
  • The curious capacities of quantum channels, Young Researcher Forum on Quantum Information Science National Tsing Hua University Taiwan
  • Embezzlement and Applications, 19th Asian Quantum Information Science Conference (AQIS) KIAS Seoul Korea
  • The curious capacities of quantum channels, University of Hong Kong