Atoms and particles have waves

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Discussion Overview

The discussion centers around the wave nature of atoms and particles, exploring the mathematical explanations and implications of this phenomenon within quantum mechanics. Participants engage with concepts related to wave-particle duality, experimental observations, and theoretical frameworks.

Discussion Character

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

Main Points Raised

  • Some participants assert that atoms and particles exhibit wave properties that can be predicted and observed, questioning the mathematical explanations for these waves.
  • Others argue that the wave nature of particles is a postulate of quantum mechanics, akin to the constancy of the speed of light in relativity, suggesting that it is an observed phenomenon without a definitive cause.
  • A participant describes the mathematical framework used to explain wave behavior in quantum mechanics, particularly in the context of electron beams and the double-slit experiment, emphasizing that the wave model is introduced to match experimental results.
  • One participant shares their exploration of fundamental particle structure based on vacuum force, noting unexpected wave patterns from electron orbitals, while expressing uncertainty about their conclusions.
  • Another participant emphasizes that while all matter has a wave nature, the wavelengths of larger objects are so small that they are practically undetectable.
  • There is a suggestion that the terminology should reflect that atoms "have a wave nature" rather than "have waves," to better align with experimental observations.
  • A mathematical expression for wavelength is provided, indicating a relationship between wavelength, Planck's constant, and momentum.

Areas of Agreement / Disagreement

Participants generally agree on the wave nature of atoms and particles, but there are multiple competing views regarding the implications and explanations of this phenomenon. The discussion remains unresolved regarding the underlying causes and the best terminology to use.

Contextual Notes

Some limitations include the dependence on definitions of wave nature, the unresolved mathematical steps in explaining the wave behavior, and the varying levels of understanding among participants regarding complex concepts in quantum mechanics.

elas
I believe I am correct in saying that atoms and particles have waves that can be both predicted and observed (if not please tell me) but, is there a mathematical explanation for the cause of these waves?
 
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Yes, particles have a wave nature, just like light and waves have a particle nature. It is more of a postulate in quantum mechanics. It's like saying the speed of light is c and constant in relativity. No real cause, it just "is" because that is what is observed experimentally.
 
The concept of waves in QM was introduced in order to explain mathematecally the behaviour of two elektronbeams passing through a wall with two openings. One calculates the probability to "see" a particle when one opening is closed. Let's say it is P_1. Then we do the same when the other opening is closed and we get probability P_2. The probability to see a particle when the two openings are open is NOT P_1 + P_2 as predicted by classical statistics. This probability is (a_1 + a_2)² when these a-numbers are the amplitude of a wave. Hence the wave-vision.

Keep in mind that fysics describes nature, it does not tell how nature has to work ! So these waves are introduced in order to match the experiments and nothing more !

regards
marlon
 
On Theory Development PF I posted my concept of fundamental particle structure based on vacuum force. Trying to justifly my claim using radii did not succeed, but using electron orbitals produced an unexpected wave pattern. I can now develope this discovery with some hope of making progress.
Like all the nutcases on Theory Developement I am probably wrong, but keeping in touch with current teaching and standards (sanity?) helps to maintain a sensible course and for that I thank you both.
 
elas said:
I believe I am correct in saying that atoms and particles have waves that can be both predicted and observed (if not please tell me) but, is there a mathematical explanation for the cause of these waves?

"have waves" would not really be the right way to say it. As another poster above said, its better to say that atoms "have a wave nature". This means that if you perform an experiment like double slit diffraction, you will observe effects that can only be explained in terms of wave.

In theory, everything from molecules and proteins, to marbles and baseballs has a wave nature, but if you calculate the wavelength of large objects it is so small as to be undetectable.
 
its better to say that atoms "have a wave nature".

I agree that this is a much better statement,and it is exactly what I hope to demomstrate next on Theory Development PF but that will take another week or so to do in outline and I am probably not sufficiently skilled to complete the work for atoms with more than three or four electrons; but, ever hopeful I have ordered a book from the library on atomic structure.
 
the wavellength of anything is:
[tex]\lambda = \frac{h}{p}[/tex]
 

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