Can EM fields exhibit the same energy-momentum tensor as gravitational waves?

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SUMMARY

The discussion centers on the theoretical possibility that certain electromagnetic (EM) fields can exhibit the same energy-momentum tensor (EMT) as gravitational waves. This hypothesis raises significant implications regarding the detection of gravitons, suggesting that if true, it may be impossible to detect individual gravitons. The conversation also touches on the adequacy of the EMT as a comparative tool for EM and gravitational radiation, particularly in relation to observed irregularities in the Cosmic Microwave Background (CMB) at low frequencies. Freeman Dyson's paper is referenced, which questions the feasibility of detecting individual gravitons.

PREREQUISITES
  • Understanding of energy-momentum tensor (EMT) in theoretical physics
  • Familiarity with electromagnetic field theory
  • Knowledge of gravitational wave properties and detection methods
  • Basic concepts of the Cosmic Microwave Background (CMB) and its significance in cosmology
NEXT STEPS
  • Research the implications of energy-momentum tensor equivalence in EM fields and gravitational waves
  • Study the detection methods for gravitational waves and the challenges in detecting gravitons
  • Examine Freeman Dyson's paper on graviton detection and its impact on theoretical physics
  • Investigate the anomalies in the Cosmic Microwave Background (CMB) and their potential explanations
USEFUL FOR

The discussion is beneficial for theoretical physicists, cosmologists, and researchers interested in the intersection of electromagnetic theory and gravitational physics, particularly those exploring the nature of gravitational waves and their detection.

member 11137
I don't know if my question belongs to this forum but I get some troubles within my approach; what would you think of a theory predicting that some EM fields can exhibit the same (type of) energy-momentum tensor (emt) than the emt associated with some gravitational waves or fields ? Such prediction, if realistic and well established would mean that it is impossible to detect a part of the gravitons, isn't it? Or is the emt not a sufficient tool to compare EM and gravitational radiations? Could this prediction explain some observations (irregularities) concerning the CMB for the low frequencies? Thanks for the help
 
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