217 citations · 595 across the 34 of their papers we have counts for
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Quantifying the resource content of quantum channels: An operational approach
Lu Li, Kaifeng Bu, Zi-Wen Liu
We propose a general method to operationally quantify the resourcefulness of quantum channels via channel discrimination, an important information processing task. A main result is…
Classical simulation of quantum circuits by half Gauss sums
Kaifeng Bu, Dax Enshan Koh
We give an efficient algorithm to evaluate a certain class of exponential sums, namely the periodic, quadratic, multivariate half Gauss sums. We show that these exponential sums be…
Duality of Graph Invariants
Kaifeng Bu, Weichen Gu, Arthur Jaffe
We study a new set of duality relations between weighted, combinatoric invariants of a graph . The dualities arise from a non-linear transform , acting on the weig…
Operational Advantage of Quantum Resources in Subchannel Discrimination
Ryuji Takagi, Bartosz Regula, Kaifeng Bu +2
One of the central problems in the study of quantum resource theories is to provide a given resource with an operational meaning, characterizing physical tasks in which the resourc…
De Finetti Theorems for Braided Parafermions
Kaifeng Bu, Arthur Jaffe, Zhengwei Liu +1
The classical de Finetti theorem in probability theory relates symmetry under the permutation group with the independence of random variables. This result has application in quantu…