Research

Research Fields/Interests

  • Quantum Shannon Theory
  • Entanglement Theory
  • Zero-error Information Theory
  • Quantum Computation

My publications can also be found on Google Scholar or arXiv. My collaborators include Runyao Duan, Kun FangYinan Li, Youming QiaoMarco Tomamichel, and Wei Xie.

Quantum Shannon Theory

  • On converse bounds for classical communication over quantum channels
    Xin Wang, Kun Fang, Marco Tomamichel
    arXiv:1709.05258, accepted by QIP 2018.
  • Semidefinite programming strong converse bounds for classical capacity
    Xin Wang, Wei Xie, Runyao Duan
    IEEE Transactions on Information Theory,
    arXiv:1610.06381, presented at QIP 2017.
  • Semidefinite programming converse bounds for quantum communication
    Xin Wang, Kun Fang, Runyao Duan
    arXiv:1709.00200,
    accepted by QIP 2018 (joint submission with Berta and Wilde [arXiv]).
  • A semidefinite programming upper bound of quantum capacity
    Xin Wang and Runyao Duan
    arXiv:1601.06888, presented at ISIT 2016.
    Proceedings of the 2016 IEEE International Symposium on Information Theory.

Entanglement Theory

  • Irreversibility of Asymptotic Entanglement Manipulation Under PPT operations
    Xin Wang and Runyao Duan
    Physical Review Letters, presented at QIP 2017.
  • Non-asymptotic entanglement distillation
    Kun Fang, Xin Wang, Marco Tomamichel, Runyao Duan
    arXiv:1706.06221, accepted by AQIS 2017.
  • Rains’ bound is not additive
    Xin Wang and Runyao Duan
    Phys. Rev. A 95, 062322, presented at AQIS 2016.
  • Improved Semidefinite Programming Upper Bound on Distillable Entanglement
    Xin Wang and Runyao Duan
    Phys. Rev. A 94, 050301(R), 2016.
  • Tripartite-to-bipartite Entanglement Transformation by Stochastic Local Operations and Classical Communication and the Classification of Matrix Spaces
    Yinan Li, Youming Qiao, Xin Wang, Runyao Duan
    accepted by Communications in Mathematical Physics, presented at AQIS 2016.
  • Indistinguishability of Quantum States by PPT operations in the many-copy scenario
    Yinan Li, Xin Wang, Runyao Duan
    Phys. Rev. A 95, 052346, 2017.
  • Approximate broadcasting of quantum correlations
    Wei Xie, Kun Fang, Xin Wang, Runyao Duan
    Phys. Rev. A 96, 022302, accepted by AQIS 2017.

Zero-error Information Theory

  • Separation between quantum Lovász number and entanglement-assisted zero-error classical capacity
    Xin Wang and Runyao Duan
    arXiv:1608.04508, submitted to IEEE TIT, presented at AQIS 2016.
  • Activated zero-error capacity of quantum channels in the presence of quantum no-signalling correlations
    Runyao Duan and Xin Wang
    arXiv:1510.05437, 2015
  • On the quantum no-signalling assisted zero-error simulation cost of non-commutative bipartite graphs
    Xin Wang and Runyao Duan
    arXiv:1601.06855, presented at ISIT 2016.
    Proceedings of the 2016 IEEE International Symposium on Information Theory.

Quantum computation