How does LHV explain quantum entanglement swapping?

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Discussion Overview

The discussion focuses on how local hidden variables (LHV) theory might explain phenomena related to quantum entanglement swapping and two-photon interference, particularly in scenarios where the involved photons do not interact directly in time or space.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant inquires about the explanation of quantum entanglement swapping under LHV theory, specifically when Alice and Bob do not meet, yet Charlie and Victor can entangle their photons.
  • Another participant references a specific experiment related to two-photon interference, questioning whether it can be considered the interference of two photons.
  • A different participant suggests that the explanation of these phenomena depends on the specific LHV model being considered.
  • There is a mention of the assumption that "two-photon" refers to a pair of entangled photons in the context of the discussion.

Areas of Agreement / Disagreement

Participants express varying viewpoints on the applicability of LHV theory to the discussed phenomena, indicating that multiple competing views remain without a consensus on the explanations.

Contextual Notes

The discussion does not resolve the assumptions or definitions related to LHV models or the specific nature of the experiments referenced, leaving these aspects open for further exploration.

San K
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how does/would LHV (local hidden variables) theory explain the phenomena of:

1. quantum entanglement swapping (where Alice and Bob never meet, and Charlie/Victor is still able to entangle their photons)
2. two-photon interference without the photons ever meeting at the same time-space/place
 
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San K said:
how does/would LHV (local hidden variables) theory explain the phenomena of:

1. quantum entanglement swapping (where Alice and Bob never meet, and Charlie/Victor is still able to entangle their photons)
2. two-photon interference without the photons ever meeting at the same time-space/place
It depends on what LHV model you have in mind:
https://www.physicsforums.com/blog.php?b=3622
 
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