Bio
A theoretical quantum physicist in the Quantum Information Science section at ORNL. He earned his Ph.D. in Physics from the University of Colorado Boulder in Aug. 2013, under the supervision of Emanuel Knill. In his Ph.D. thesis he proved that the number of standard deviations of a Bell-inequality violation is not a valid measure of experimental evidence against local realism. To overcome the problem, he developed the first asymptotically optimal method to quantify experimental evidence against local realism without assuming that the experimental trials in a Bell test are i.i.d. After receiving his Ph.D., he moved to the Institute for Quantum Computing (IQC) in Canada as a postdoc fellow in the group of Norbert Lütkenhaus, working on the security analysis of practical quantum key distribution (QKD). Then in early 2017, he joined the NTT Basic Research Laboratories (BRL) in Japan as a research associate in the Theoretical Quantum Physics Research Group led by William J. Munro. He was promoted to be a research specialist at NTT BRL in Mar. 2020, and started holding an adjoint position in the National Institute of Informatics (NII) in Japan from Mar. 2022. His research in Japan focused on how to efficiently certify quantum randomness. He joined ORNL as a research scientist in Sept. 2022. His current research topics include estimating quantum properties without the usual i.i.d. assumption and in the presence of adversarial imperfections in both the state preparation and the measurement apparatus. He is also serving as an associate editor for the journal Quantum Information Processing.