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what_are_electrons
Can a single photon repulse or attract another single photon under some certain conditions?
what_are_electrons said:Can a single photon repulse or attract another single photon under some certain conditions?
If I think electrostatics, then there is an attractive interaction. Yes?vanesch said:Yes, through higher-order interactions in QED: namely by coupling to a virtual e+-e- pair.
cheers,
Patrick.
what_are_electrons said:If I think electrostatics, then there is an attractive interaction. Yes?
Please describe what is meant by "scattering" in this case.dextercioby said:I wouldn't call light scattering on light an "attraction or repulsion".It's simply scattering.In fact,at quantum level,even though we still deal with ELECTRICALLY charged particles,we don't have that attraction/repulsion pictured so nicely by Coulomb's law.
For the record,the simplest QED process of photons scattering on photons is 4-th order...Not really easy to calculate,even after u renormalize.
Daniel.
Edgardo said:Hey,
can light be scattered by a neutron? :shy:
dextercioby said:...(the propagator would probably be similar to the one of a massive neutrino,because spin 1/2,mass+ zero electric charge)...
Janitor said:One difference between the massive neutrino and the neutron is the nonvanishing magnetic dipole moment of the neutron, deriving from the fact that the neutron is composed of charged quarks. Still, to lowest order, there may be no photon-neutron interaction.
what_are_electrons said:To clarify my interest, please let me know if "photon-photon scattering" for a photon (with spin = 1) is a physical phenomenon that has a billiard ball appearance, or if, scattering is a transient interaction between the two photons, or if, scattering is a quantum field interaction between two photons? Thanks in advance!
Photon-photon repulsion-attraction is the phenomenon in which two photons, which are particles of light, either attract or repel each other depending on their respective electric fields.
Photon-photon repulsion-attraction occurs through the interaction of electric fields between two photons. When the electric fields are aligned in the same direction, the photons will attract each other, and when they are aligned in opposite directions, the photons will repel each other.
No, photon-photon repulsion-attraction is a phenomenon that occurs on a very small scale and is not observable in everyday life. It is only observed and studied in controlled laboratory experiments.
Studying photon-photon repulsion-attraction can provide insights into the fundamental properties of light and the behavior of electric fields. It can also have potential applications in the development of new technologies, such as quantum computing.
While there are currently no practical applications of photon-photon repulsion-attraction, ongoing research in this area may lead to potential applications in the future. Some proposed applications include using photon-photon repulsion to manipulate and control light in optical devices and using photon-photon attraction to create new types of photonic materials.