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FrediFizzx wrote:I like this quote in the slides for Jaynes,

“But our present QM formalism is not purely epistemological; it is a peculiar
mixture describing in part realities of Nature, in part incomplete human information
about Nature — all scrambled up by Heisenberg and Bohr into an omelette that
nobody has seen how to unscramble. Yet we think that the unscrambling is a
prerequisite for any further advance in basic physical theory. For, if we cannot
separate the subjective and objective aspects of the formalism, we cannot know
what we are talking about; it is just that simple.”

We are working on the unscrambling.

The principle of maximum entropy states that the probability distribution which best represents the current state of knowledge is the one with largest entropy

gill1109 wrote:I like to call his solution: "martingale-like disciplined passion at a distance".

So far, nobody has even asked me what I might mean by that crazy combination of words.

FrediFizzx wrote:I like this quote in the slides for Jaynes,

“But our present QM formalism is not purely epistemological; it is a peculiar
mixture describing in part realities of Nature, in part incomplete human information
about Nature — all scrambled up by Heisenberg and Bohr into an omelette that
nobody has seen how to unscramble. Yet we think that the unscrambling is a
prerequisite for any further advance in basic physical theory. For, if we cannot
separate the subjective and objective aspects of the formalism, we cannot know
what we are talking about; it is just that simple.”

We are working on the unscrambling.

Jarek wrote:We have organized QM foundations seminar with Paweł Błasiak in Cracow (he is in UK now) - here are links to slides including from this "Is single-particle interference spooky?" article:
http://th.if.uj.edu.pl/~dudaj/OPMK.pdf

Unfortunately it doesn't longer work for two particles.

FrediFizzx wrote:https://arxiv.org/abs/1701.02552

It appears quantum interference effects aren't so quantum after all. This was published in Physical Review A under a different title.

https://journals.aps.org/pra/abstract/1 ... .98.012118
"Local model of a qudit: Single particle in optical circuits"

So along with Joy's local realistic model for EPR-Bohm, quantum "spookiness" is gone. POOF! Its (spookiness) wavefunction has permanently collapsed.
.

It has been said about quantum interference, that “in reality, it contains the only mystery”. Together with nonlocality, it is often considered the characteristic feature of quantum theory challenging our classical understanding of the world. In this work, we are concerned with the restricted setting of a single particle propagating in multipath interferometric circuits—that is, the physical realization of a qudit—which is host to many typically quantum mechanical effects including collapse of the wave function and contextuality. In this paper, we show that this framework can be simulated with classical resources without violating the locality principle. We present a local ontological model whose predictions are indistinguishable from the quantum case. In the model, ‘nonlocality' appears merely as an epistemic effect arising from a level of description by agents whose knowledge is incomplete. It is notably different from the multiparticle scenarios where entanglement leads to nonlocal correlations on an ontological level. This result exposes the conceptual difference between single- and multiparticle phenomena, pointing to the latter as a deeper quantum mystery.