What if elementary particles do have size

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Discussion Overview

The discussion explores the concept of whether elementary particles, such as electrons, might possess a physical size or structure, contrasting classical and quantum perspectives. Participants consider the implications of attempting to visualize or measure such particles using advanced microscopy or particle accelerators.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant questions the possibility of visualizing an electron as a tangible object, suggesting that if one could zoom in sufficiently, they might observe a structure.
  • Another participant references the limitations of classical ideas in the quantum realm, indicating that electrons do not remain stationary enough to be "captured" visually.
  • A different participant asserts that no existing microscope can achieve the necessary resolution to view particles, likening particle accelerators to attempts at such visualization but noting their inherent limitations.
  • It is mentioned that observing an electron involves interactions with photons, which may not provide the resolution needed to discern structure, and that modern theories describe particles as field excitations rather than classical objects with defined structures.

Areas of Agreement / Disagreement

Participants express differing views on the nature of elementary particles, with some supporting the idea of a classical structure and others emphasizing the quantum perspective that challenges this notion. The discussion remains unresolved regarding the existence of size or structure in elementary particles.

Contextual Notes

Participants highlight limitations related to measurement techniques and the definitions of particles in quantum mechanics, but do not resolve these issues.

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Is it possible that they have the structure something like we used to picture them as? For example, what if we captured an electron and zoom in with a microscope that see infinitly small distances. Is it possible that if we zoomed into the electron close enough that we would see an object? Maybe something like a ball or something? And if no why not
 
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with a microscope that see infinitly small distances.

Such a thing does not exist. One can view particle accelerators as an attempt to create such a thing, but they have limits to their resolution too.
 
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seeing an electron is tantamount to bouncing a photon off of it. individual photons don't really have great resolutions to "see" anything. if you want to see the structure of particles, you collide them in super-colliders like the LHC. modern theory tells us that particles are nothing but field excitations, so we don't expect it to have "structure" in the classical sense.
 

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