University of British Columbia, Canada, raussen@phas.ubc.ca
(joint work with Michael Zurel and Cihan Okay)
We show that every quantum computation can be described by a probabilistic update of a probability distribution on a finite phase space. Negativity in a quasiprobability function is not required in states or operations. Our result is consistent with Gleason’s Theorem and the Pusey-Barrett- Rudolph theorem.
[1] Michael Zurel, Cihan Okay and Robert Raussendorf, Phys. Rev. Lett. 125, 260404 (2020).