Is There a Limit to Electromagnetic Energy Density in Finite Space?

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SUMMARY

The discussion centers on the limits of electromagnetic energy density in finite space, specifically questioning whether there is a maximum capacity for energy density due to the massless nature of photons. It concludes that while black holes exhibit infinite density, they still adhere to critical energy thresholds that lead to gravitational collapse. The conversation highlights the interplay between general relativity and field theory, suggesting that beyond a certain energy density, particle-antiparticle pairs may form, complicating the concept of energy density during the early universe.

PREREQUISITES
  • Understanding of general relativity principles
  • Familiarity with quantum field theory concepts
  • Knowledge of black hole physics and energy density
  • Basic grasp of particle-antiparticle pair production
NEXT STEPS
  • Research the implications of general relativity on energy density limits
  • Study quantum field theory and its relation to electromagnetic energy
  • Explore the conditions of the early universe and energy density during the big bang
  • Investigate the formation and properties of black holes in relation to energy density
USEFUL FOR

Physicists, cosmologists, and students of theoretical physics interested in the relationship between energy density, black holes, and the fundamental laws governing the universe.

easyrider
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Hi yall, I was just wondering, seeing as how photons are massless, would there be a limit to the amount of electromagnetic energy you can fit in a given (finite) area? Of course excluding the practical reasons that would stop you. And if there is a limit, how come? Because black holes are technically infinite density and yet they are massive so to speak.
 
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The answer isn't entirely known as it requires a combination of general relativity with field theory which is difficult, tenuous, and uncertain.
Gravity responds to energy in general, not just rest mass, so (presumably) a black-hole would still be formed above some critical energy (density).
 
It seems that, at a point it would become too much and start forming particle-antiparticle pairs. Although I would think during the very early parts of the big bang, if it wasnt already an infinite energy density then an unthinkably high density, that it would atleast be possible to attain ever-increasing energy densities since there was no matter quite yet?
 

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