Charles Lim Group

Our group research is mainly focused on the theory of quantum communication, quantum cryptography, and quantum correlations. In these topics, we work on the security of quantum cryptography (e.g., quantum key distribution, randomness generation, broadcasting networks, etc) and the foundations of quantum information processing (monogamy of quantum correlations, quantum communication resource theory, etc). 

One of our goals is to produce research work that would accelerate the growth of quantum technology. To this end, we are also interested in developing theoretical toolboxes for experimental quantum optics. 

Currently, we are seeking PhD students and Research Fellows to work on the above topics. Interested applicants are invited to send their CVs and research statements to charles.lim@nus.edu.sg

More information at our homepage: https://www.ccwlim.com/

Group Members

Recent papers

  • Gong Zhang, I.W. Primaatmaja, Jing Yan Haw, Xiao Gong, Chao Wang, C.C.W. Lim. (2021). Securing practical quantum communication systems with optical power limiters. PRX Quantum 2 030304
  • R. Schwonnek , K.T. Goh, I.W. Primaatmaja, Ernest Y.-Z. Tan, Ramona Wolf, V. Scarani, C.C.W. Lim. (2021). Device-independent quantum key distribution with random key basis . Nature Communications 12
  • I.W. Primaatmaja, A. Ho, V. Scarani. (2021). Optimal single-shot discrimination of optical modes. Phys. Rev. A 103 052410
  • C.C.W. Lim, Feihu Xu, Jian-Wei Pan, A. Ekert. (2021). Security analysis of quantum key distribution with small block length and its application to quantum space communications. Phys. Rev. Lett. 126 100501
  • J. Eli Bourassa, I.W. Primaatmaja, C.C.W. Lim, Hoi-Kwong Lo. (2020). Loss-tolerant quantum key distribution with a twist. Phys. Rev. A 102
  • Ernest Y.-Z. Tan, C.C.W. Lim, Renato Renner. (2020). Advantage distillation for device-independent quantum key distribution. Phys. Rev. Lett. 124 020502
  • Ernest Y. -Z. Tan, R. Schwonnek , K.T. Goh, I.W. Primaatmaja, C.C.W. Lim. Computing secure key rates for quantum key distribution with untrusted devices.
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