David Xiang

most citedQuantitatively improved finite-size criteria for spectral gaps

9 citations · 9 across the 2 of their papers we have counts for

collaborators

2 papers

math-ph2021★ 9 cited

Quantitatively improved finite-size criteria for spectral gaps

Marius Lemm, David Xiang

Finite-size criteria have emerged as an effective tool for deriving spectral gaps in higher-dimensional frustration-free quantum spin systems. We quantitatively improve the existin…

math.CO2020

A nonuniform Littlewood-Offord inequality for all norms

Kyle Luh, David Xiang

Let $v_{i}$ be vectors in $R^{d}$ and ${ε_{i}}$ be independent Rademacher random variables. Then the Littlewood-Offord problem entails finding the best uppe…