Magnetic fields and gravitons ?

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Discussion Overview

The discussion centers on the relationship between magnetic fields and gravitons, exploring whether magnetic fields can exchange or emit gravitons, and how this might relate to photons emitted from magnetic fields. The conversation touches on both quantum and classical perspectives.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions if a magnetic field can exchange gravitons or emit them, and whether the gravitational field associated with a magnetic field is transferred to a photon when emitted.
  • Another participant expresses a desire for input on the topic, indicating a need for further discussion or clarification.
  • A participant asserts that magnetic fields are equivalent to photons, suggesting a classical perspective where the energy density of a magnetic field contributes to the stress-energy tensor, which in turn produces curvature according to Einstein's equations.
  • A similar claim is made that photons are excitations of the magnetic field, leading to a question about the diffraction of magnetic fields.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are competing views on the nature of the relationship between magnetic fields and photons, as well as the implications for gravitons.

Contextual Notes

The discussion includes assumptions about the nature of magnetic fields and their relationship to quantum mechanics and general relativity, which remain unresolved. There is also ambiguity regarding the definitions of terms like "gravitons" and "photons" in this context.

Who May Find This Useful

This discussion may be of interest to those exploring the intersections of electromagnetism and gravitation, particularly in theoretical physics and quantum field theory.

cragar
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This might sound crazy , but could a magnetic field exchange gravitons with something
else , or can a magnetic field emit gravitons , And when a photon is emitted from the B field is the gravitational field from the B field transferred to the photon and then carried away by the photon .
 
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someone has to have some input on this , Any input will be much appreciated.
 
Magnetic fields ARE photons.

I don't really know the answer to your question quantum mechanically, but classically, having a B field means there's an energy density u = |B|^2/2mu_0. An energy density contributes to the stress-energy tensor, and thus, by Einstein's equation, produces curvature. My naive intuition regarding the corresponding theory would tell me that yes, the field should be able to couple to gravitons.
 
chrispb said:
Magnetic fields ARE photons.
I thought that photons were the excitation of the magnetic field.

Are you saying that magnetic fields can diffract .
 

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