- #1
sweetvirgogirl
- 116
- 0
Charges of +q and -q are separated by a distance L.
What would be a typical energy of a virtual photon they exchange?
What would be a typical energy of a virtual photon they exchange?
Calculating Virtual Photon Energy between +q and -q Charges
- Thread starter sweetvirgogirl
- Start date
In summary, the conversation discusses the separation of charges +q and -q by a distance L and the exchange of virtual photons between them. The typical energy of a virtual photon is being questioned, and the use of "distance L" in relation to photons is being discussed. The individual named Daniel has suggested drawing a Feynman diagram and considering conservation of momentum. Another individual suggests using the time version of the uncertainty principle to determine the energy of the virtual photon.
- #2
emptymaximum
- 110
- 0
what have you done so far?
why would they exchange a virtual photon in the first place?
why would they exchange a virtual photon in the first place?
- #3
- 13,353
- 3,211
Why do you mix photons with "distance L" ...?
Daniel.
Daniel.
- #4
sweetvirgogirl
- 116
- 0
dextercioby said:
I stated the problem as it is given in the book
- #5
- 13,353
- 3,211
Well, virtual photons are terms used in QED, but "distance L" between 2 pointlike charges has to do with classical electrodynamics, i.e. electrostatics...Do you see anything suspicious...?
Daniel.
Daniel.
- #6
emptymaximum
- 110
- 0
draw the feynman diagram. do conservation of momentum.
treat it like a collision.
treat it like a collision.
- #7
sweetvirgogirl
- 116
- 0
bump 
- #8
El Hombre Invisible
- 692
- 0
Can you not just use the time version of the uncertainty principal to determine the energy of the virtual photon? You can express [tex]\Delta t[/tex] in terms of L and c and find [tex]\Delta E[/tex].
Related to Calculating Virtual Photon Energy between +q and -q Charges
1. What is the formula for calculating virtual photon energy between +q and -q charges?
The formula for calculating virtual photon energy between +q and -q charges is: E = q^2 / (4*pi*epsilon_0*r), where E is the energy, q is the charge, and r is the distance between the two charges.
2. How does the distance between the charges affect the virtual photon energy?
The distance between the charges has an inverse relationship with the virtual photon energy. This means that as the distance increases, the energy decreases and vice versa.
3. What is the role of epsilon_0 in the calculation of virtual photon energy?
Epsilon_0, also known as the permittivity of free space, is a constant that represents the electric field in a vacuum. It is a necessary factor in the formula for calculating virtual photon energy as it relates to the strength of the electric field between the two charges.
4. Can virtual photon energy be negative?
No, virtual photon energy cannot be negative. It is always a positive value, as the energy is transferred from the +q charge to the -q charge.
5. How is virtual photon energy related to quantum mechanics?
Virtual photon energy is a concept that is used in quantum mechanics to explain the interactions between particles. It is a result of the uncertainty principle, which states that particles can temporarily borrow energy from the vacuum in order to interact with each other.
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