What is the nature of de Broglie matter wave? Is it longitudian or transverse?

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SUMMARY

The discussion centers on the wave nature of electrons as demonstrated by the Davisson-Germer experiment, which shows electrons exhibiting wave-like behavior at an energy resonance of 54 eV. Participants emphasize that quantum mechanics, particularly Quantum Field Theory, provides a robust framework for understanding this phenomenon, asserting that electrons are excitations of the Electron Field rather than traditional particles or waves. The conversation also touches on the concept of wave-particle duality and the need for a new definition of fundamental particles in quantum physics.

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  • Understanding of Quantum Mechanics and Quantum Field Theory
  • Familiarity with the Davisson-Germer experiment
  • Knowledge of wave-particle duality concepts
  • Basic grasp of electron behavior and energy levels
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nohtha
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TL;DR
for davisson and germer experiment(proof of wave nature of electron) the electron have wavelength of 1.66 angstrom approximate.Corresponding to this wavelength the electron have energy of 2.5 Kev approximate.Is this possible?The electron actual as a wave or it behave as a wave in special case only. In reality what is electron ? in same way for radiation also ,the radiation also behave as particle under certain condition only?
I just want to elaborate the wave nature of electron from davisson and germer experiment . there is resonance of energy (54 ev)provide to electron for which it show wave like behavior's.
give some better explanation for this.
 
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nohtha said:
give some better explanation for this.
For an explanation of the behaviour of an electron, try quantum mechanics.
 
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nohtha said:
give some better explanation for this.

I guess you could ask one of your graduate school Physics students to explain it to you... :wink:
nohtha said:
I am a Physics professor for graduate level students
 
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nohtha said:
I just want to elaborate the wave nature of electron from davisson and germer experiment . there is resonance of energy (54 ev)provide to electron for which it show wave like behavior's.
give some better explanation for this.
Give a better explanation than what? The standard explanation using quantum mechanics (more accurately Quantum Field Theory)? Standard quantum physics gives us an extremely good explanation, so good that we can find virtually no discrepancies between experiments and theoretical predictions. There are no better explanations.

nohtha said:
for davisson and germer experiment(proof of wave nature of electron) the electron have wavelength of 1.66 angstrom approximate.Corresponding to this wavelength the electron have energy of 2.5 Kev approximate.Is this possible?The electron actual as a wave or it behave as a wave in special case only. In reality what is electron ? in same way for radiation also ,the radiation also behave as particle under certain condition only?
Our best explanation is that electrons are excitations of an underlying field called the Electron Field. In fact, all matter is such, with each type of particle being an excitation of an underlying field. Even light is an excitation of an underlying field, the electromagnetic field.

So it's not that an electron is sometimes a wave and sometimes a particle, or that it is both a particle and a wave, but that the very idea of what a fundamental particle is requires a new definition. Fundamental particles are not tiny little balls. They also aren't waves. They are an entirely new type of 'thing' that requires an understanding of quantum physics to understand properly. Hence why everyone is so confused when first hearing about them.
 
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:welcome:
I am a Physics professor for graduate level students
Sounds to me like you are a physics teacher in high school in some Spanish speaking country.

Demystifier said:
Or perhaps you are just confused by the so called "wave-particle duality"? Perhaps
https://arxiv.org/abs/quant-ph/0609163 Sec. 2 can help.
That reply could be quite helpful for you, at least if your English (and your QM background) is good enough to enjoy reading that section 2.

If you tell us your first language, then maybe we could try to better adjust our responses to you.
 
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gentzen said:
... Spanish speaking country.

... at least if your English ... is good enough ...

If you tell us your first language, ...
I'm curious, why do you think that his first language is Spanish? In any case, his English looks good enough to me, to read any physics text.
 
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Demystifier said:
I'm curious, why do you think that his first language is Spanish? In any case, his English looks good enough to me, to read any physics text.
If you look at the reactions, it looks to me like his overall communication caused confusion. Spanish is sufficiently similar to English that you don't realize immediately that somebody has serious trouble with it.
 
gentzen said:
Spanish is sufficiently similar to English ...
In the title of the thread he wrote "longitudian", which of course should be longitudinal in English. But according to google translate, the Spanish word is also "longitudinal". So whatever his native language is, I'd bet it's not Spanish.
 

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