Does the electric force in a hydrogen atom behave like an electromagnetic wave?

In summary: Basically, the radiation from the electron-positron pair behaves the same as any other electromagnetic radiation.
  • #1
colinr
29
0
I have a book talking about transient electron-positron pairs appearing and disappearing inside a hydrogen atom which effects the attractive force between the proton and the electron, okay I'm fine with that.

It then goes on to say that the effect is only over short distances because of the speed of light. Does this mean that the electric force of attraction propagates as an elctromagnetic wave?
 
Physics news on Phys.org
  • #2
colinr said:
It then goes on to say that the effect is only over short distances because of the speed of light. Does this mean that the electric force of attraction propagates as an elctromagnetic wave?

I'm not familiar with pairs occurring an atom, but any moving electric field creates an EM wave, that's what electrodynamics is mostly about. That is why the cells in your eye respond to the light from your monitor. Electric charges in your monitor move, creating EM waves that reach your eyes, moving charges in them that makes a current reach you brain. An EM wave is a wave of E fields (and corresponding B fields) just like the attractive and repulsive ones you know about.
 
  • #3
so their effect can only have traveled as far as the em wave produced by the moving charge could have traveled in the time the pair existed.

the attractive force is a property of the wave

Thanks
 
  • #4
colinr said:
so their effect can only have traveled as far as the em wave produced by the moving charge could have traveled in the time the pair existed.

the attractive force is a property of the wave

Thanks

Is that electron-positron (virtual) pair located between the electron and the proton? Since it will get a little crowded when this pair appears between the electron and the proton, what will the proton and the electron do in response to sudden appearance and disappearance of those transient fields - the zwitterbewegung dance?
 
  • #5
Apparently Heisenberg said that the law of conservation of energy can fail by an amount E, for a time t, provided that E x t < h (planck constant)

So the electron-positron pair can appear out nothing but only last for about 10^-21 seconds. During this time they emit a em wave which travels about 10^-12 metres (I figure that's about 1% of the typical distance between the proton and the electron).

**************************************************************

So when measuring the force between the proton and electron at large distances the force is in keeping with the fine structure constant. But if you measure the force at short distances, the effect of screening caused by the transient pairs is less, so the effective force between the proton and electron appears larger, and is quantified by a number larger than the fine structure constant.

Now I can't even understand what I just wrote because I think there is a gap in my knowledge represented here by ******* if anyone can help fill it in or just to explain some small part, I would really appreciate it.
 
  • #6
The radiation produced by the pair also has some energy, which must also obey E x t < h. Since radiation energy E is very large (it will spread as a bundle containing all 2*mc2 of the annihilating short-lived pair), t is very small. In such a short t, the traveling distance is very short because c is too slow.
 
Last edited by a moderator:

1. What is Quantum Electrodynamics?

Quantum Electrodynamics, or QED, is a scientific theory that describes the interaction between light and matter at the atomic and subatomic level. It combines the principles of quantum mechanics and electromagnetism to explain how particles interact with each other through the exchange of photons.

2. How does Quantum Electrodynamics differ from classical electromagnetism?

Unlike classical electromagnetism, which describes the behavior of particles as continuous waves, QED takes into account the discrete nature of particles and the probabilistic nature of their interactions. It also allows for the creation and annihilation of particles, which is not possible in classical electromagnetism.

3. What is the significance of Quantum Electrodynamics in modern physics?

QED is considered one of the most successful and accurate theories in modern physics. It has been extensively tested and has accurately predicted the behavior of particles in numerous experiments. It is also an important building block for other theories, such as the Standard Model of particle physics.

4. How does Quantum Electrodynamics explain the phenomenon of light interference?

According to QED, light is made up of particles called photons. These photons interact with each other and with matter through the exchange of virtual photons. When two light waves interfere with each other, it is actually the result of the interference between the virtual photons.

5. What are some practical applications of Quantum Electrodynamics?

QED has numerous practical applications, such as in the development of lasers, transistors, and other electronic devices. It is also used in many modern technologies, including medical imaging, telecommunications, and computer technology. Additionally, QED plays a crucial role in understanding and developing new materials for energy production and storage.

Similar threads

  • Quantum Physics
2
Replies
36
Views
1K
  • Quantum Physics
Replies
8
Views
2K
  • Quantum Physics
Replies
7
Views
2K
Replies
10
Views
1K
Replies
11
Views
1K
Replies
46
Views
2K
Replies
4
Views
2K
Replies
1
Views
1K
Replies
5
Views
2K
Back
Top