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This tag is for questions relating to what, if anything, the quantum mechanical formalism and experimental results say about the way the world works.
1
vote
brains observing the detectors in double slit experiments
Systems behave in a 'quantum way' whe they are fully isolated from their surroundings. Photons are significant because they are the limit of lowest mass-energy signal, so disturb observed systems the …
0
votes
Testing the Dream Hypothesis
This article offers a possible answer - meditation should be possible even in a dream that isn't recognised as such, and lead to being 'more awake' by observing the minds operations on the world vs th …
1
vote
How is a superposition with two different weights for the states accounted for in the many w...
"Can this difference only become clear in the larger context of more
measurements, which will make the difference visible? Or is the 30/70
inherently no different from the 50/50 state?"
Each branch …
1
vote
The ontological logic of the relational interpretation of Quantum Mechanics
Information flow is the best bridge we have between Relativity and Quantum Mechanics. In Relativity it's all about light cones and light clocks, in QM it's about when systems are isolated and when sta …
2
votes
Accepted
Time Travel and Virtual Particles correlation?
Feynman diagrams suggest this kind of thing, where they can be turned around the time axis and viewed as for instance particles going forward, or an equuvalentvparticle going backwards. It is well acc …
3
votes
Plato meets Quantum Mechanics
Plato situated the real as an essentially mental experience. There are no perfect physical circles, only mental ones. So I think he would have no problem with QM, relating reality to the sophisticatio …
3
votes
What is the case for free will?
I see two main avenues. Compatibilism, and pantheism.
Compatibilism typically says free-will is a profoundly useful heuristic, and it plays a role in one of the explanatory layers that make predictio …
1
vote
Can space be both Euclidean and non-Euclidean, "at the same time"?
Photons do always travel in straight lines - but across curved space.
Closed curvature spaces can be embedded in Euclidean spaces. Open curvature spaces, 'saddle shaped' ones, cannot.
Remember as well …
2
votes
What is Robert Nozick alluding to by a “vast generalization” of Feynman’s path integral?
I totally agree with the scepticism already expressed by others about what Nozick is trying to say. However, I would like to take a guess at what he is driving it.
He is really saying, the world we f …
4
votes
Computer vs brain in many-worlds interpretation of QM
But classical computers rely on quantum processes too, which underlie the function of semiconductors. You can't just say 'wooo quantum things are weird the brain is weird, therefore they are the same …
2
votes
Accepted
Quantum probability theory and the idea of a "truth-value sphere"
So, the comparison would be to the Bloch Sphere (which maps to the Rieman sphere). But I'd say you need to follow the analogy more closely. The square root of truth would be a truth wavefunction, the …