Can String Theory Explain the Nonlocality of Particles and Waves?

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String theory's relationship with nonlocality and the wave-particle duality of particles is a complex topic. While particles exhibit nonlocal behavior, the theory suggests that strings, as their fundamental constituents, do not inherently possess this property due to their relativistic covariance. The discussion highlights confusion around the concept of entanglement and how it relates to nonlocality, emphasizing that quantum mechanics does not support faster-than-light communication or causation. Participants express a desire for clarity on how string theory addresses the dual nature of particles and waves, questioning why this aspect is not more thoroughly explored in existing literature. Ultimately, the conversation reflects ongoing uncertainty about the implications of string theory for understanding fundamental quantum phenomena.
  • #31
Two strings can be nonlocally entangled in the same way as two particles can be nonlocally entangled. However, as a single string is nonlocal by itself, there is an additional form of nonlocality in string theory - an entanglement between different parts of the string.

The hidden-variable formulations of quantum mechanics make this entanglement nonlocality manifest. The most successfull hidden-variable theory is the Bohmian interpretation. For the case of strings see
http://arxiv.org/abs/hep-th/0605250
But can string theory bring a new explanation of this nonlocality? In
http://arxiv.org/abs/hep-th/0512186
it is suggested that the Bohmian interpretation can be DERIVED from string theory, so in this sense the answer could be - yes!
 

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