Is sunlight through gaps in leaves during an eclipse decohered?

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Discussion Overview

The discussion revolves around the nature of light observed during an eclipse as it passes through gaps in leaves, specifically whether this phenomenon can be attributed to decoherence or if it is purely classical in nature. Participants explore the implications of the pinhole effect and the role of quantum mechanics in this context.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant suggests that the visibility of the sun and moon shapes is due to the light behaving as photons rather than waves because of the gaps between leaves.
  • Another participant proposes that the phenomenon should be understood through the pinhole effect, asserting that it can be treated as a classical electromagnetic wave without quantum mechanical implications.
  • A different viewpoint introduces the idea of combining the pinhole effect with decoherence, suggesting that decoherence would reduce diffraction effects.
  • Some participants strongly assert that the phenomenon is entirely classical and unrelated to quantum mechanics, rejecting the notion of decoherence affecting the light in this scenario.

Areas of Agreement / Disagreement

Participants express disagreement regarding the role of quantum mechanics and decoherence in the observed phenomenon, with some insisting on a classical interpretation while others attempt to incorporate quantum concepts. The discussion remains unresolved with competing views present.

Contextual Notes

There are differing interpretations of the phenomena involved, particularly concerning the definitions of classical versus quantum behavior of light and the assumptions underlying the pinhole effect and decoherence.

quantuminternet
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TL;DR
Example of decoherence?
Is the reason you can make out the shape of the sun and the moon is because the gaps between the leaves cause the light to be photons instead of waves?
 
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I am not sure what phenomenon you are considering, but if it is what I think it is, then you should look up the pinhole effect
https://en.wikipedia.org/wiki/Pinhole_(optics)

In any case, there is nothing quantum mechanical taking place here. You can treat the light here as a classical electromagnetic wave.
 
I'm saying it is pinhole + decoherence. There would be more diffraction if it wasn't decohered.
 
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quantuminternet said:
I'm saying it is pinhole + decoherence.

You can say whatever you want, but it doesn't make it true.

DrClaude said:
In any case, there is nothing quantum mechanical taking place here.

This.
 
quantuminternet said:
Is the reason you can make out the shape of the sun and the moon is because the gaps between the leaves cause the light to be photons instead of waves?
No. This is a completely classical phenomenon that as nothing to do with quantum mechanics, photons, or decoherence.

This thread is closed.
 

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