Upper Limit of EM-Field Strength

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Discussion Overview

The discussion revolves around the theoretical limits of electric and magnetic field strengths in a vacuum, specifically questioning the highest possible values for these fields and the calculations involved. The conversation touches on concepts from both theoretical physics and speculative reasoning.

Discussion Character

  • Exploratory, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant inquires about the highest theoretically possible electric and magnetic vacuum field strengths and the methods for calculating them.
  • Another participant questions the reasoning behind the belief that there are limits to these field strengths, mentioning the Schwinger limit and suggesting that while complexities arise beyond this point, it is not an absolute upper limit.
  • A third participant acknowledges the Schwinger limit but notes the lack of a comparable limit for magnetic fields, indicating that the topic remains open to speculation.
  • It is proposed that magnetic fields in one reference frame can be viewed as electric fields in another, suggesting a relationship between the two and implying that limitations on electric field strength may also apply to magnetic field strength.
  • A participant expresses curiosity about the identity of "Hans," indicating a potential informal or personal aspect to the discussion.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the existence or nature of limits to electric and magnetic field strengths, with multiple competing views and ongoing speculation present in the discussion.

Contextual Notes

The discussion includes references to theoretical limits such as the Schwinger limit, but does not resolve the implications of these limits for magnetic fields or the transformations between electric and magnetic fields.

Kayser
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Hello!
Which are the highest theoretically possible electric and magnetic vacuum field strengths E and H? How are they calculated?
 
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Why do you think they are limited?

Above the Schwinger limit things get complicated, but it is not a hard upper limit.
 
Thank you- Hans - for your sophisticated reply. I knew the Schwinger limit, but nothing comparable to magnetic fields. The subject remains open to unlimited speculation.
 
Magnetic fields in one system are electric fields in another system. The transformations are not completely arbitrary, but something that limits the electric field strength should also limit the magnetic field strength.

Who is Hans?
 

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