Science, asked by suvighosh, 10 months ago

What is quantum nonlocality?

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Answered by sssrohit005p4c0ey
0

Answer:

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A: Albert Einstein distrusted quantum mechanics because he perceived embedded

in its formalism what he called “spooky actions at a distance”. The characteristic that

worried Einstein is now called “nonlocality”. The term locality means that separated

system parts that are out of speed-of-light contact can only retain some definite rela-

tionship through memory of previous contact. Nonlocality means that some relation-

ship is being enforced nonlocally across space and time. The nonlocality of quantum

mechanics has been spotlighted by quantum-optics EPR (Einstein–Podolsky–Rosen)

experiments showing in ever increasing detail the peculiar actions and consequences

of nonlocality. These measurements, for example the correlated optical polariza-

tions for oppositely directed photons, show that something very like faster-than-light

hand-shaking must be going on within the formalism of quantum mechanics and in

nature itself.

Answered by AwesomeSoul47
0

Answer:

hey DEAR

quantum nonlocality refers to the phenomenon by which the measurement statistics of a multipartite quantum system do not admit an interpretation in terms of a local realistic theory. Quantum nonlocality has been experimentally verified under different physical assumptions.Any physical theory that aims at superseding or replacing quantum theory should account for such experiments and therefore must also be nonlocal in this sense; quantum nonlocality is a property of the universe that is independent of our description of nature.

Quantum nonlocality does not allow for faster-than-light communication, and hence is compatible with special relativity. However, it prompts many of the foundational discussions concerning quantum theory, see Quantum foundations.

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