What is the difference between an electron and electromagnetic waves?

Click For Summary

Discussion Overview

The discussion revolves around the differences between electrons and electromagnetic waves, particularly in the context of the double-slit experiment. Participants explore the nature of electrons as particles and their wave-particle duality, as well as the implications for other forms of matter like atoms and molecules.

Discussion Character

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

Main Points Raised

  • Some participants suggest that both electrons and electromagnetic waves are forms of energy, while others argue that energy is merely an attribute of these entities.
  • One participant explains that electrons are charged particles that create electromagnetic fields, whereas electromagnetic waves represent propagating changes in these fields.
  • Questions arise about the behavior of electrons in the double-slit experiment, particularly regarding what happens when only one slit is open and how the pattern on the screen would appear.
  • Participants discuss the concept of wave-particle duality, noting that while electrons can behave like waves during diffraction, they are fundamentally particles.
  • There is mention of the possibility of diffracting larger particles, such as molecules, and references to experiments involving the diffraction of complex entities like viruses.

Areas of Agreement / Disagreement

Participants express differing views on the nature of electrons and electromagnetic waves, with no consensus reached on whether they can be classified as energy. The discussion includes multiple competing perspectives on wave-particle duality and the implications for different types of matter.

Contextual Notes

Some claims about the behavior of particles during diffraction and the nature of wave-particle duality remain unresolved, with participants expressing uncertainty about the implications of these concepts.

neom
Messages
13
Reaction score
0
Both are energy right?

I'm asking cause I'm trying to understand the double-slit experiment and I'm just wondering how they can be sure to treat the electron as a particle. Could it be performed with for instance whole atoms or maybe the cores or something else that's more obviously matter? And has it been done?

Thanks
 
Physics news on Phys.org
neom said:
Both are energy right?

Wrong. Energy is an attribute, they carry a certain amount of it, but you can't say that they are energy.

Electrons carry charge and are therefore sources of an electromagnetic field. An electromagnetic wave on the other hand can be thought of as a propagating change of such an electromagnetic field.
 
Ok, but I now have a few other questions. What happens if both slits are open, but they are far between and the electrons gets sent through only one of them? If it's a wave it can still get through both slits even though one is far away. What would happen? And if only one slot are open, how will it look on the screen with the slits if you measure how it spreads there. Will it show a pattern on the first screen?
 
Electrons are particles that make up everyday matter, along with protons and neutrons (which are made of quarks). Photons are particles of light (or electromagnetic phenomena in general), which is a form of energy.

All particles in quantum mechanics have something called wave-particle duality; they behave in some ways like particles and in some ways like waves. When you are diffracting them, they are behaving like waves. Particles do not diffract. So I guess the answer to your question is "they don't".

Yes, you can diffract anything. It becomes harder and harder the heavier the thing you are trying to diffract, but yes, you can do it with molecules:
https://www.physicsforums.com/showthread.php?t=353456
The buckyball paper referenced there can be read here:
http://hexagon.physics.wisc.edu/teaching/2010s%20ph531%20quantum%20mechanics/interesting%20papers/zeilinger%20large%20molecule%20interference%20ajp%202003.pdf

I can't find the reference now, but I seem to recall that someone actually diffracted a virus. This link:
http://www.science20.com/hammock_physicist/quantum_viruses
is related, but not quite what I was thinking of.
 
Last edited by a moderator:
Thanks, that's very cool. And insane too. Molecules behaving like waves, makes me completely doubt if I'm real at all.
 
neom said:
Thanks, that's very cool. And insane too. Molecules behaving like waves, makes me completely doubt if I'm real at all.

You're probably imaginary.
 
neom said:
Thanks, that's very cool. And insane too. Molecules behaving like waves, makes me completely doubt if I'm real at all.

Why would acting like a wave make you not real? It's just another aspect of yourself that you knew nothing about!
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 21 ·
Replies
21
Views
3K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 36 ·
2
Replies
36
Views
9K
  • · Replies 8 ·
Replies
8
Views
2K
Replies
26
Views
6K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 19 ·
Replies
19
Views
3K