Theory of Computing
-------------------
Title     : A Stochastic Calculus Approach to the Oracle Separation of $\mathsf{BQP}$ and $\mathsf{PH}$
Authors   : Xinyu Wu
Volume    : 18
Number    : 17
Pages     : 1-11
URL       : https://theoryofcomputing.org/articles/v018a017

Abstract
--------

Recently, Ran Raz and Avishay Tal proved that in some relativized
world, $\mathsf{BQP}$ is not contained in the polynomial-time
hierarchy (STOC'19). It has been suggested that some aspects of the
proof may be simplified by stochastic calculus. In this note, we
describe such a simplification.