QBism: Quantum Theory as a Hero's Handbook
Abstract
This paper represents an elaboration of the lectures delivered by one of us (CAF) during "Course 197 -- Foundations of Quantum Physics" at the International School of Physics "Enrico Fermi" in Varenna, Italy, July 2016. Much of the material for it is drawn from arXiv:1003.5209, arXiv:1401.7254, and arXiv:1405.2390. However there are substantial additions of original material in Sections 4, 7, 8 and 9, along with clarifications and expansions of the older content throughout. Topics include the meaning of subjective probability; no-cloning, teleportation, and quantum tomography from the subjectivist Bayesian perspective; the message QBism receives from Bell inequality violations (namely, that nature is creative); the import of symmetric informationally complete (SIC) quantum measurements for the technical side of QBism; quantum cosmology QBist-style; and a potential meaning for the holographic principle within QBism.
Keywords
Cite
@article{arxiv.1612.07308,
title = {QBism: Quantum Theory as a Hero's Handbook},
author = {Christopher A. Fuchs and Blake C. Stacey},
journal= {arXiv preprint arXiv:1612.07308},
year = {2019}
}
Comments
39 pages, 8 figures (1 of a superhero); lectures based on arXiv:1003.5209, arXiv:1401.7254 and arXiv:1405.2390 plus new content; v3: bibliography glitch-fixes