Wave-particle duality: nature of wave-particle as it travels

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Discussion Overview

The discussion revolves around the concept of wave-particle duality, specifically focusing on the behavior of photons as they travel through free space. Participants explore the nature of electromagnetic radiation, the propagation of waves, and the absorption of photons by matter. The conversation includes theoretical considerations and conceptual challenges related to visualizing these phenomena.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants propose that a photon is emitted, travels as a wave, and is absorbed as a photon, questioning if this is a satisfactory conceptual explanation.
  • There is discussion on how the wave propagates, with one participant suggesting that the photon wavelet moves forward at the speed of light, while another challenges the use of the term "wiggle" to describe this motion.
  • Some participants argue that the energy of a photon is evenly distributed throughout the sphere of travel, while others suggest that interpretations of quantum mechanics vary on this point.
  • One participant introduces an analogy of photons as "little fish made of wiggles" to help visualize their behavior, while others caution against misconceptions arising from such imagery.
  • There is a debate about the appropriateness of using straight lines versus wiggly lines in diagrams to represent photons, with references to Feynman diagrams and the challenges of intuitive representations.

Areas of Agreement / Disagreement

Participants express differing views on the visualization of photon behavior, the propagation of energy, and the interpretations of quantum mechanics. No consensus is reached on these points, indicating ongoing debate and exploration of the topic.

Contextual Notes

Limitations include the dependence on various interpretations of quantum mechanics, the challenges of visualizing abstract concepts, and the unresolved nature of certain claims regarding the behavior of photons.

  • #31
Peter99 said:
(and indeed, i is mathematically undefined)
It has a well-defined mathematical description.
bhobba said:
it would mean if I did something here on Earth it could instantaneously affect something at the other side of the universe. This is not what we experience in our day to day life - we don't see things around us is affected by things light years away instantaneously.
It would not change much if we ignore the effects on particle physics and cosmology. You would instantly be affected by the current locations of the stars in Alpha Centauri - so what? We are influenced by their positions approximately 4 years ago, but we do not care because that influence (and, in particular, its change over 4 years) is negligible.
 

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