Quantum superpositions don't exist? Barandes's indivisible interpretation of quantum mechanics

Описание: What if quantum superpositions aren't real? We'll explore a mind-bending new interpretation of quantum mechanics from a Harward researcher Jacob Barandes (a so-called indivisible interpretation or stochastic-quantum correspondence) that claims just that.
Join us on an epic journey through Middle Earth as we use Frodo's quest as an example to understand how quantum weirdness might actually emerge from something surprisingly classical. Discover how particles could have definite positions all along, and why those famous 'multiple states at once' might just be mathematical illusions.
We'll unpack the mysteries of quantum interference, entanglement, and the Born rule in ways that actually make sense. Along the way, we explore decoherence, quantum measurement, and why quantum mechanics is so weirdly linear when almost nothing else in physics is.
This isn't just another quantum mechanics explainer - it's a fresh perspective that offers elegant answers to questions that have puzzled scientists for a century. Ready to see quantum mechanics in a whole new light?

References:
The Barandes's paper: "The Stochastic-Quantum Correspondence" https://arxiv.org/abs/2302.10778
His paper on causal locality: "New Prospects for a Causally Local Formulation of Quantum Theory" https://arxiv.org/abs/2402.16935

Contents:
0:00 Teaser
0:16 Intro
1:30 Frodo's journey as a stochastic model
5:54 Frodo's journey as quantum mechanics
9:39 Superpositions and Bloch sphere
11:23 Hamiltonian and Schrödinger equation
12:22 Quantum channels and Kraus decomposition
14:40 Non-markovianity and indivisibility
18:50 Decoherence and Gandalf
23:49 Quantum measurement and non-diagonal observables
26:57 Conclusions and analogies
32:47 Comments and questions

Image/video attributions:
Double slit: Original: NekoJaNekoJa Vector: Johannes Kalliauer, CC BY-SA 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Double slit gif: Lookang many thanks to Fu-Kwun Hwang and author of Easy Java Simulation = Francisco Esquembre, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Middle-Earth: k1tesurfen, CC BY-SA 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Qubit: Y. Salathé, M. Mondal, M. Oppliger, J. Heinsoo, P. Kurpiers, A. Potočnik, A. Mezzacapo, U. Las Heras, L. Lamata, E. Solano, S. Filipp, and A. Wallraff, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Quantum wave: Thierry Dugnolle, CC0, via Wikimedia Commons
Schroedinger cat decoherence: © Vyacheslav Argenberg / http://www.vascoplanet.com/, CC BY 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Sunrise: ozma, CC BY 2.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Gravitational wave: NASA/JPL, Public domain, via Wikimedia Commons
Zeno paradox: Martin Grandjean, CC BY-SA 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Geiger counter: Boffy b, CC BY-SA 3.0 http://creativecommons.org/licenses/b..., via Wikimedia Commons
Carnot engine: MikeRun, CC BY-SA 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Brownian motion gif: Lookang Author of computer model: Francisco Esquembre, Fu-Kwun and lookang, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Bell photo: CERN, CC BY 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Ptolemaic model: Krishnachandranvn, CC0, via Wikimedia Commons
Keplerian model: https://www.flickr.com/photos/1130437..., CC BY 2.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Pendulum: Ruryk, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Pendulum phase space: Krishnavedala, CC BY-SA 4.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Vector potential: Constant314, CC0, via Wikimedia Commons
Complex numbers: Daniele Pugliesi, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons
Aharonov-Bohm effect: Kismalac, CC BY-SA 3.0 https://creativecommons.org/licenses/..., via Wikimedia Commons