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

In summary: But I could be wrong.In summary, the conversation discusses the wave nature of electrons, specifically in the Davisson and Germer experiment where it was proven that electrons have a wavelength and can exhibit wave-like behavior when provided with a certain energy. The conversation also delves into the concept of quantum mechanics and how it explains the behavior of electrons as excitations of an underlying field. The idea of "wave-particle duality" is mentioned, along with various interpretations of quantum mechanics. The conversation also touches on the confusion surrounding the term "particle" when referring to fundamental particles.
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nohtha
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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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  • #2
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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  • #4
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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  • #8
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.
 
  • #9
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.
 

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

What is the nature of de Broglie matter wave?

De Broglie matter waves describe the wave-like behavior of particles, such as electrons, which traditionally were considered purely as particles. According to de Broglie, every particle has a wavelength associated with it, given by the equation λ = h/p, where h is Planck’s constant and p is the momentum of the particle. This wave-particle duality is a fundamental concept in quantum mechanics.

Are de Broglie matter waves longitudinal or transverse?

De Broglie matter waves are not strictly classified as longitudinal or transverse in the same way as classical mechanical waves (like sound waves or electromagnetic waves). They are a probabilistic wave function that represents the likelihood of finding a particle in a given space and time. The wave nature described by de Broglie is a mathematical abstraction rather than a physical oscillation in a medium.

Can de Broglie matter waves be visualized as physical waves?

De Broglie matter waves cannot be directly visualized as physical waves like water waves or sound waves. Instead, they are represented by a wave function in quantum mechanics, which provides the probability amplitude of a particle’s position and momentum. The square of the wave function’s magnitude gives the probability density of finding the particle in a particular region of space.

How do de Broglie matter waves relate to the concept of wave-particle duality?

De Broglie matter waves are a key component of the wave-particle duality concept, which states that particles exhibit both wave-like and particle-like properties. This duality is fundamental to quantum mechanics and is demonstrated by phenomena such as electron diffraction and the double-slit experiment, where particles create interference patterns characteristic of waves.

What experimental evidence supports the existence of de Broglie matter waves?

Experimental evidence for de Broglie matter waves includes electron diffraction and interference experiments. For example, when a beam of electrons is directed at a crystal, the electrons produce a diffraction pattern similar to that of X-rays, indicating their wave-like nature. Additionally, the double-slit experiment with electrons shows an interference pattern, further confirming the wave-like behavior predicted by de Broglie.

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