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Xin Wang

Staff Researcher

Baidu Research

Biography

I am a Staff Researcher at the Institute for Quantum Computing at Baidu Research. I am interested in the theory of quantum information, quantum computing, quantum resource theories, and machine learning.

I was a Hartree Postdoctoral Fellow at the Joint Center for Quantum Information and Computer Science (QuICS) at the University of Maryland, College Park. I received my doctorate in quantum information from the University of Technology Sydney (UTS:QSI) in 2018, under the supervision of Prof. Runyao Duan and Prof. Andreas Winter. I obtained my B.S. in mathematics (with Wu Yuzhang Honor) from Sichuan University in 2014.

Hiring: I am looking for self-motivated student interns who are interested in quantum computation and machine learning. Please feel free to contact me.

Interests

  • Quantum Information Theory
  • Quantum Computation
  • Quantum Resource Theories
  • Quantum Programming Language
  • Optimization and machine learning.

Education

  • PhD in Quantum Information, 2018

    University of Technology Sydney

  • BSc in Mathematics, 2014

    Sichuan University

Experience

 
 
 
 
 

Staff Researcher

Institute for Quantum Computing, Baidu Research

Jul 2019 – Present Beijing
 
 
 
 
 

Hartree Postdoctoral Fellow

QuICS, University of Maryland, College Park

Sep 2018 – Jul 2019 Maryland

News

  • 10 /2019, our work Resource theory of asymmetric distinguishability has been accepted as a talk at QIP 2020.
  • 10 /2019, our work Quantifying the magic resources for quantum computation has been accepted as a talk at QIP 2020.
  • 09/2019, our paper Quantum Channel Simulation and the Channel’s Smooth Max-Information has been accepted by IEEE Transactions on Information Theory [paper].
  • 09/2019, our paper Quantifying the magic of quantum channels has been published in New Journal of Physics [paper].
  • 09/2019, our paper One-Shot Entanglement Distillation beyond LOCC has been published in New Journal of Physics [paper].
  • 06/2019, our work Efficiently computable bounds for magic state distillation will be presented as a long talk at AQIS 2019.
  • 06/2019, our work Resource theory of asymmetric distinguishability will be presented as a talk at AQIS 2019.
  • 06/2019, I am invited to deliver lectures and tutorials at the 2019 Illinois Quantum Computing Summer School.
  • 06/2019, I am invited to serve as a program committee member for AQIS 2019.
  • 05/2019, our new paper Resource theory of asymmetric distinguishability is available online [arXiv].
  • 04/2019, our paper Non-asymptotic entanglement distillation has been accepted by IEEE Transactions on Information Theory [paper].
  • 01/2019, our work Entanglement cost of quantum state preparation and channel simulation was presented as a talk at QIP 2019 [slides][video].
  • 01/2019, our paper On converse bounds for classical communication over quantum channels has been accepted by IEEE Transactions on Information Theory [paper].
  • 12 /2018, our new paper Efficiently computable bounds for magic state distillation is available online [arXiv].
  • 12 /2018, my PhD thesis “Semidefinite Optimization for Quantum Information” was awarded the Chancellor’s List for Best Thesis.
  • 10 /2018, our paper Using and reusing coherence to realize quantum processes was published in Quantum.
  • 10 /2018, our paper Semidefinite programming converse bounds for quantum communication was published in IEEE Transactions on Information Theory [link].
  • 08/2018, our paper Probabilistic distillation of quantum coherence (with Gerardo Adesso, Kun Fang, Ludovico Lami, and Bartosz Regula) was published in Physical Review Letters.
  • 07/2018, our paper One-shot coherence distillation (with Gerardo Adesso, Kun Fang, and Bartosz Regula) was published in Physical Review Letters.

Publications

  1. Quantifying the magic of quantum channels
    Xin Wang, Mark M. Wilde, Yuan Su
    Accepted at QIP 2020 as a talk.
    [NJP] [arXiv]
  2. Resource theory of asymmetric distinguishability
    Xin Wang and Mark M. Wilde
    Accepted at QIP 2020 as a talk.
    arXiv:1905.11629
  3. Quantum Channel Simulation and the Channel’s Smooth Max-Information
    Kun Fang, Xin Wang, Marco Tomamichel, Mario Berta
    Presented at ISIT 2018, TQC 2018 and BIID 2018 as contributed talks.
    IEEE Transactions on Information Theory (in press, 2019).
    [TIT][ISIT][arXiv]
  4. Resource theory of asymmetric distinguishability for quantum channels
    Xin Wang and Mark M. Wilde
    arXiv:1907.06306
  5. Efficiently computable bounds for magic state distillation
    Xin Wang, Mark M. Wilde, Yuan Su
    Presented at AQIS 2019 as a long talk.
    arXiv:1812.10145
  6. Time-dependent Hamiltonian simulation with L1-norm scaling
    Dominic W. Berry, Andrew M. Childs, Yuan Su, Xin Wang, Nathan Wiebe
    arXiv:1906.07115
  7. On converse bounds for classical communication over quantum channels
    Xin Wang, Kun Fang, Marco Tomamichel
    Presented at QIP 2018 as a contributed talk.
    IEEE Transactions on Information Theory 65(7): 4609 - 4619 (2019).
    [TIT][arXiv]
  8. Exact entanglement cost of quantum states and channels under PPT-preserving operations
    Xin Wang and Mark M. Wilde
    Presented at QIP 2019 as a contributed talk.
    [arXiv]
  9. α-Logarithmic negativity
    Xin Wang and Mark M. Wilde
    arXiv:1904.10437
  10. Resource theory of entanglement for bipartite quantum channels
    Stefan Bäuml, Siddhartha Das, Xin Wang, Mark M. Wilde
    arXiv:1907.04181
  11. One-shot entanglement distillation beyond LOCC
    Bartosz Regula, Kun Fang, Xin Wang, Mile Gu
    New Journal of Physics 21, 103017 (2019)
    [NJP][arXiv]
  12. Non-asymptotic entanglement distillation
    Kun Fang, Xin Wang, Marco Tomamichel, Runyao Duan
    Presented at AQIS 2017 as a long talk.
    IEEE Transactions on Information Theory 65(10): 6454 - 6465 (2019).
    [TIT][arXiv]
  13. Semidefinite programming converse bounds for quantum communication
    Xin Wang, Kun Fang, Runyao Duan
    Presented at QIP 2018 as a contributed talk.
    IEEE Transactions on Information Theory 65(4): 2583 - 2592 (2019).
    [TIT][arXiv][slides]
  14. Separation between quantum Lovász number and entanglement-assisted zero-error capacity
    Xin Wang and Runyao Duan
    Presented at AQIS 2016 as a contributed talk.
    IEEE Transactions on Information Theory 64(3):1454-1460 (2018).
    [TIT][arXiv][slides]
  15. Converse bounds for classical communication over quantum networks
    Wei Xie, Xin Wang, and Runyao Duan
    Proceedings of the 2018 IEEE International Symposium on Information Theory.
    [ISIT][arXiv]
  16. Probabilistic distillation of quantum coherence
    Kun Fang, Xin Wang, Ludovico Lami, Bartosz Regula, Gerardo Adesso
    Physical Review Letters 121, 070404 (2018).
    [PRL][arXiv]
  17. Gaussian quantum resource theories
    Ludovico Lami, Bartosz Regula, Xin Wang, Rosanna Nichols, Andreas Winter, Gerardo Adesso
    Physical Review A 98, 022335 (2018) (Editors’ Suggestion)
    [PRA][arXiv]
  18. One-shot coherence distillation
    Bartosz Regula, Kun Fang, Xin Wang, Gerardo Adesso
    Physical Review Letters 121, 010401 (2018).
    [PRL][arXiv]
  19. Semidefinite programming strong converse bounds for classical capacity
    Xin Wang, Wei Xie, Runyao Duan
    Presented at QIP 2017, ISIT 2017, BIID 2017 as contributed talks.
    IEEE Transactions on Information Theory 64(1): 640-653 (2018).
    [TIT][arXiv][slides]
  20. Using and reusing coherence to realize quantum processes
    María García Díaz, Kun Fang, Xin Wang, Matteo Rosati, Michalis Skotiniotis, John Calsamiglia, Andreas Winter
    Quantum Journal 2, 100 (2018).
    [Quantum][arXiv]
  21. Q|SI⟩: A Quantum Programming Environment
    Shusen Liu, Xin Wang, Li Zhou, Ji Guan, Yinan Li, Yang He, Runyao Duan, Mingsheng Ying
    In Symposium on Real-Time and Hybrid Systems. Lecture Notes in Computer Science, vol 11180. Springer, Cham.
    arXiv:1710.09500, software available at http://www.qcompiler.com.
  22. 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
    Presented at AQIS 2016 as a contributed talk.
    Communications in Mathematical Physics 358(2): 791–814 (2018).
    [CMP][arXiv][slides]
  23. Irreversibility of Asymptotic Entanglement Manipulation Under PPT operations
    Xin Wang and Runyao Duan
    Presented at QIP 2017 as a contributed talk and at AQIS 2017 as a long talk.
    Physical Review Letters 119, 180506 (2017).
    [PRL][arXiv][slides]
  24. Approximate broadcasting of quantum correlations
    Wei Xie, Kun Fang, Xin Wang, Runyao Duan
    Physical Review A 96, 022302 (2017).
    Presented at AQIS 2017.
    [PRA][arXiv]
  25. Indistinguishability of Quantum States by PPT operations in the many-copy scenario
    Yinan Li, Xin Wang, Runyao Duan
    Physical Review A 95, 052346 (2017).
    [PRA][arXiv]
  26. Rains’ bound is not additive
    Xin Wang and Runyao Duan
    Physical Review A 95, 062322 (2017).
    [PRA][arXiv]
  27. A semidefinite programming upper bound of quantum capacity
    Xin Wang and Runyao Duan
    Proceedings of the 2016 IEEE International Symposium on Information Theory.
    [ISIT][arXiv]
  28. On the quantum no-signalling assisted zero-error simulation cost of non-commutative bipartite graphs
    Xin Wang and Runyao Duan
    Proceedings of the 2016 IEEE International Symposium on Information Theory.
    [ISIT][arXiv]
  29. Improved Semidefinite Programming Upper Bound on Distillable Entanglement
    Xin Wang and Runyao Duan
    Presented at AQIS 2016 as a contributed talk.
    Physical Review A 94, 050301 (Rapid communication) (2016).
    [PRA][arXiv]
  30. Activated zero-error capacity of quantum channels in the presence of quantum no-signalling correlations
    Runyao Duan and Xin Wang
    [arXiv].