Wang Yan Nan’s home page



I am a Ph.D. student working under the supervision of Prof. Chandra Nair, in the Information Engineering department, The Chinese University of Hong Kong.

Research Interests

  • Multiuser information theory
  • Entropy related problems

Educational Background

I obtained my bachelor degree (first-class honour) in information engineering from The Chinese University of Hong Kong (CUHK) in 2016.

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* Authors are all in alphabetical order

Conference Papers

Unpublished papers (pre-publications and others)

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  • CSE Theory Lunch Talk@CUHK, 11:30 am-12:00 am, Nov 20, 2015, SHB 1021B.

    Abstract: Evaluation for hypercontractivity and reverse-hypercontractivity parameters for the binary erasure channel.


  • CSE Theory Lunch Talk@CUHK, 11:00 am-12:00 am, Oct 11, 2019, SHB 833.    Abstract: I will talk about some results in a recent paper “Capacity Upper Bounds for the Relay Channel via Reverse Hypercontractivity” by Jingbo Liu and Ayfer Ozgur. This paper uses reverse hypercontractivity to obtain some capacity bounds for the symmetric relay channel. I will outline the proof of their main result as well as demonstrate how reverse hypercontractivity plays a role in the proof.


  • CSE Theory Lunch Talk@CUHK, 11:00 am-12:00 am, May 15, 2020, SHB 801.

    Title: Log-Convexity of Fisher Information along the Heat Flow                           Abstract: A recent result regarding the log-convexity of Fisher Information along the Heat Flow in the single dimension case will be presented. This is joint work with Michel Ledoux and Chandra Nair. The log-convexity of Fisher Information had been conjectured earlier as a consequence of a stronger conjecture regarding the complete monotonicity of Fisher Information along the Heat Flow.

    We will present the motivation behind the result as well as open problems (for instance, the generalization to higher dimensions and the potential relation to geodesic convexity).


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Contact information

  • E-mail:
  • Phone: 852 5343 1852
  • Address: 805, Ho Sing Hang (SHB), the Chinese University of Hong Kong, Sha Tin, N.T., Hong Kong
  • Chinese name: 王雁南