Education
 2017/1  Present: Ph.D candidate, Stanford University
 2012/8  2016/6: B.Sc, Massachusetts Institute of Technology (GPA: 4.9/5.0)
 2006/1  2011/1: NUS High School of Mathematics and Science, Singapore (Rank: 1/209)

Service
Reviewer for Physical Review Letters, Physical Review A, ISIT (International Symposium on Information Theory), Quantum, SODA (Symposium on Discrete Algorithms), IEEE Quantum Engineering.
I am also one of the organizers for the Beyond I.I.D. in Information Theory workshop to be held at Stanford in 2020.


Bounding the forward classical channel capacity of bipartite channels
Dawei Ding, Sumeet Khatri, Yihui Quek, Peter W. Shor, Xin Wang, Mark M Wilde
[arXiv], [short talk], [long talk (by Mark)]
We derive an SDP upperbound on the bipartite channel's classical capacity. As a result, we also obtain the tightestknown upperbound on classicalfeedbackassisted quantum channel capacity, in a sequel to our first paper on the topic.
Lightning talk at the Beyond i.i.d in Information Theory workshop

Entropy Bound for the Classical Capacity of a Quantum Channel aided by Classical Feedback
Dawei Ding, Yihui Quek, Peter W. Shor, Mark M Wilde
2019 IEEE International Symposium on Information Theory (ISIT), Paris, France, 2019, pp. 250254
[arXiv], [IEEE]
Firstever general bound on classical feedbackaided capacity over a quantum channel, in terms of the maximum output entropy of that channel.
Contributed talk at the International Symposium for Information Theory

Quantum and SuperQuantum Enhancements to Twosender, Tworeceiver Channels
Yihui Quek and Peter W. Shor
Physical Review A, Vol.95, No.5, May 1, 2017
[arxiv][Physical Review A]
Poster at Young Quantum Information Scientists Symposium in Barcelona, 2016

Quantum algorithm for Petz recovery channels and pretty good measurements
A Gilyén, S Lloyd, I Marvian, Y Quek, MM Wilde
[arXiv], [talk], [slides], [Limerick]
We use the recentlydeveloped Quantum Singular Value Transform technique to implement the ubiquitous theoretical tools of Petz recovery channels and pretty good measurements.
Talk at the MIT QIS group meeting; invited talk at the Perimeter Institute Quantum Seminar; contributed talk at the `Quantum Week of Fun' workshop

Robust Quantum Minimum Finding with an Application to Hypothesis Selection
Yihui Quek, Clément Canonne, Patrick Rebentrost
[arXiv], [slides], [Limerick]
We show that the Quantum MinimumFinding algorithm of DurrHoyer can be robust even in the presence of a noisy or imprecise comparator. We also show an application to hypothesis selection that runs in time sublinear in the number of hypotheses.
Invited talk at the Algorithms and Complexity Seminar of the IRIF at CNRS/the University of Paris; talk at online seminar at the University of Technology Sydney's QSI.


Quantum Information Theory

Signal processing, Biophysics, Linguistics

Minimum Power to Maintain a Nonequilibrium Distribution of a Markov Chain
Dmitri Pavlichin, Yihui Quek, Tsachy Weissman
[arXiv]
Inspired by a question of Feynman, we propose KLdivergence between Markov chains as a notion of energy cost for maintaining a nonequilibrium distribution in biological systems.


Body sizedependent energy storage causes Kleiber's law scaling of the metabolic rate in planarians
Albert Thommen, Steffen Werner, Olga Frank, Jenny Philipp, Oskar Knittelfelder, Yihui Quek, Karim Fahmy, Andrej Shevchenko, Benjamin M. Friedrich, Frank Jülicher, Jochen C. Rink
eLife, 8 Art. No. e38187 (2019)
[bioRxiv] [eLife]
Contributed talk at 1st CrickBeddington Developmental Biology Symposium, 2019


Severing focus form and meaning in Standard and Colloquial Singapore English
Yihui Quek and Aron Hirsch
Proceedings of the 47th meeting of the Northeast Linguistics Society (NELS 47), 2016
[PDF]
Poster at NELS47, 2016

Generalized Robust Shrinkage Estimator and its application to STAP detection problem
Frédéric Pascal, Yacine Chitour and Yihui Quek
IEEE Transactions on Signal Processing, Vol. 62, No. 21, Nov 1, 2014
[arXiv]

