Spooky Action at a Distance / Tachyons?

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In summary, there have been proposals for a mechanism to explain the spooky action at a distance in Bell Inequality type experiments, such as Bohmian Mechanics which has an explicit non-local mechanism. However, there is no fundamental need for a mechanism and the idea of using tachyons as a mechanism is not supported by most interpretations of tachyons. Additionally, experiments have ruled out the possibility of two-way instantaneous communication between particles, and any nonlocal realist theory must have a holistic approach like Bohmian mechanics.
  • #1
edpell
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Has anybody proposed a mechanism for the spooky action at a distance of the wave function collapse in Bell Inequality type experiments? Does anybody propose tachyons as a mechanism?
 
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  • #2
edpell said:
Has anybody proposed a mechanism for the spooky action at a distance of the wave function collapse in Bell Inequality type experiments? Does anybody propose tachyons as a mechanism?

Bohmian Mechanics has an explicit non-local mechanism.
 
  • #3
DrChinese said:
Bohmian Mechanics has an explicit non-local mechanism.
And of course there is no fundamental need for a mechanism.

If one does feel a need for a mechanism, then tachyons certainly don't sound like the right one. Quantum-mechanical correlations don't propagate information at speeds greater than c, whereas most interpretations of tachyons say that tachyons do. Therefore you've taken a problem that isn't really a problem (the desire for a hidden mechanism) and turned it into something that is a problem (causality violation).
 
  • #4
I don't think the transmission of tachyons is even good enough. Leggett's inequality assumes that the only kind of nonlocality you have is two-way instantaneous communication between any two particles in the universe, and it's been ruled out by experiment. The kind of nonlocality that's required is not just two-way "telephone connections" between particles; you need a "conference call" between all the particles. In other words, any nonlocal realist theory must have the same kind of holism that Bohmian mechanics does.
 

What is spooky action at a distance?

Spooky action at a distance, also known as quantum entanglement, is a phenomenon in quantum physics where two particles become connected in such a way that the state of one particle affects the state of the other, regardless of the distance between them.

How does spooky action at a distance occur?

Spooky action at a distance occurs when two particles become entangled, meaning they share a quantum state. This can happen when the particles interact with each other in close proximity or are created together and then separated.

What are tachyons?

Tachyons are hypothetical particles that travel faster than the speed of light. They have not been proven to exist and are still a subject of debate and research in the field of physics.

Can tachyons be used for faster-than-light communication?

No, tachyons cannot be used for faster-than-light communication because they are purely theoretical and have not been observed or proven to exist. Also, according to the theory of relativity, nothing can travel faster than the speed of light.

Is spooky action at a distance related to tachyons?

There is currently no known connection between spooky action at a distance and tachyons. Tachyons are still a hypothetical concept, while spooky action at a distance has been observed and studied in quantum physics experiments.

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