5 ms·

De Broglie–Bohm theory is a hidden-variable theory but does not allow for FTL communication.

davorak 2y ago
My understanding is that it is not that simple, pilot-wave theories, are not the traditional hidden-variable theories. While some setups look very simple in pilot-wave compared to say the schrodinger equation, other setups are as unintuitive in pilot-wave as schrodinger equation is in some. My lightly held conclusion is if it really was a full and more straight forward solution it would dominate the conversation more than it does now. This option was formed reading some primary sources but mostly reviews and comparisons of QM theories. Unlike other methodologies I have never working through a full QM example problem in pilot-wave theory.
- codethief 2y ago
  I'm not sure what the point is you're trying to make. OP claimed > the idea that unknown quantities are determining the outcomes in quantum mechanics has been disproven in the event of the speed of light being a true limit on communication speed. and I provided an immediate counterexample. Yes, Bell's Theorem and its exact assumptions are not entirely straightforward but let's please stop propagating those falsehoods that die-hard proponents of the Copenhagen interpretation commonly propagate.
exe34 2y ago
Thank you! I need to read more in that area.
- programd 2y ago
  Let me throw in "Hydrodynamic Quantum Analogs" [1] as a fascinating review of how quantum effects emerge in experiments with bouncing oil drops on liquid. This is fully a pilot wave driven experiment and there has been a lot of academic work analyzing the system and trying to fit it into the de Broglie-Bohm formulations of quantum dynamics. To quote section 10.2: "The [experimental] system represents a classical realization of wave–particle duality as envisaged by de Broglie, wherein a real object has both wave and particle components." We've already got all those fields interacting in the real world, so I don't find it very far fetched that quantum mechanics emerges from their fully classically described interactions, probably expressed in some really gnarly 4D math. [1] https://thales.mit.edu/bush/wp-content/uploads/2021/04/BushOza-ROPP.pdf https://thales.mit.edu/bush/wp-content/uploads/2021/04/BushO...
- codethief 2y ago
  Tim Maudlin's "Philosophy of Physics: Quantum Theory" makes for an excellent read! It addresses tons of questions which are rarely answered (let alone asked) in your run-of-the-mill university-level QM class.

My understanding is that it is not that simple, pilot-wave theories, are not the traditional hidden-variable theories. While some setups look very simple in pilot-wave compared to say the schrodinger equation, other setups are as unintuitive in pilot-wave as schrodinger equation is in some. My lightly held conclusion is if it really was a full and more straight forward solution it would dominate the conversation more than it does now. This option was formed reading some primary sources but mostly reviews and comparisons of QM theories. Unlike other methodologies I have never working through a full QM example problem in pilot-wave theory.

codethief 2y ago
I'm not sure what the point is you're trying to make. OP claimed > the idea that unknown quantities are determining the outcomes in quantum mechanics has been disproven in the event of the speed of light being a true limit on communication speed. and I provided an immediate counterexample. Yes, Bell's Theorem and its exact assumptions are not entirely straightforward but let's please stop propagating those falsehoods that die-hard proponents of the Copenhagen interpretation commonly propagate.

exe34 2y ago

Thank you! I need to read more in that area.

programd 2y ago
Let me throw in "Hydrodynamic Quantum Analogs" [1] as a fascinating review of how quantum effects emerge in experiments with bouncing oil drops on liquid. This is fully a pilot wave driven experiment and there has been a lot of academic work analyzing the system and trying to fit it into the de Broglie-Bohm formulations of quantum dynamics. To quote section 10.2: "The [experimental] system represents a classical realization of wave–particle duality as envisaged by de Broglie, wherein a real object has both wave and particle components." We've already got all those fields interacting in the real world, so I don't find it very far fetched that quantum mechanics emerges from their fully classically described interactions, probably expressed in some really gnarly 4D math. [1] https://thales.mit.edu/bush/wp-content/uploads/2021/04/BushOza-ROPP.pdf https://thales.mit.edu/bush/wp-content/uploads/2021/04/BushO...
codethief 2y ago
Tim Maudlin's "Philosophy of Physics: Quantum Theory" makes for an excellent read! It addresses tons of questions which are rarely answered (let alone asked) in your run-of-the-mill university-level QM class.