Covariant Maxwell Equations in Materials

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SUMMARY

The discussion centers on the search for covariant Maxwell equations in materials, specifically the equation \(\partial_{\nu}F^{\nu\mu}+\Pi^{\mu\nu}A_{\nu}=J^{\mu}_{libre}\) and its associated tensor \(\Pi_{\mu\nu}\). Participants reference "Foundations of Electrodynamics" by P. Moon and D. E. Spencer as a potential source, while also noting the challenges posed by Lorentz Transformation on physical parameters like permittivity and permeability. The conversation highlights the complexity of these equations in the context of linear electrodynamics of non-chiral materials and suggests that insights can be gained from Post's "Formal Structure of Electromagnetics".

PREREQUISITES
  • Understanding of covariant formulations in physics
  • Familiarity with Maxwell's equations and their applications in materials
  • Knowledge of linear electrodynamics, particularly in non-chiral materials
  • Basic grasp of Lorentz Transformation and its implications on physical parameters
NEXT STEPS
  • Research the covariant Maxwell equations in materials using "Foundations of Electrodynamics" by P. Moon and D. E. Spencer
  • Explore the implications of Lorentz Transformation on permittivity and permeability in materials
  • Study the concepts presented in Post's "Formal Structure of Electromagnetics"
  • Investigate spatial dispersion effects in linear electrodynamics
USEFUL FOR

Physicists, electrical engineers, and researchers in material science focusing on electromagnetic theory and its applications in complex materials.

EsPg
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Hi everybody,

I have this simple question. ¿Where can I find the covariant maxwell equations in materials?. I've already one and proved they correctly represent the non-homogene maxwell equations, is this one

\partial_{\nu}F^{\nu\mu}+\Pi^{\mu\nu}A_{\nu}=J^{\mu}_{libre}

with the tensor defined as

\Pi_{\mu\nu}&=\chi_e(\eta_{\mu\nu}\partial^2 -\partial^{\mu}\partial^{\mu})-\de{\chi_e+\frac{\chi_m}{1+\chi_m}}\eta_{\mu l}\eta_{\nu m}(\delta_{lm}\bigtriangledown^2-\partial_{l}\partial_{m})

I need the other one. Thanks!
 
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¿Nobody? I've been checking Landau's book but i can't find them :'(. There's a Wikipedia article but it's all messed,maybe after this and on vacation I fix it.
 
They're described and analyzed here: "Foundations of Electrodynamics" by P. Moon and D. E. Spencer.

But the whole situation becomes extremely messy as most every physical parameter including permittivity and permeability becomes skewed due to the attempt to accommodate the Lorentz Transformation.
 
PhilDSP said:
They're described and analyzed here: "Foundations of Electrodynamics" by P. Moon and D. E. Spencer.

But the whole situation becomes extremely messy as most every physical parameter including permittivity and permeability becomes skewed due to the attempt to accommodate the Lorentz Transformation.

Thanks. The problem is that i haven't been able to check that book, it's neither in the library nor online. ¿Any other place?
 
You may be able to get some insight from Post's "Formal Structure of Electromagnetics".
 
I think the other one is identically equal to the equation in vacuo.
However, your equation does seem to be rather specialized. E.g. , a splitting into chi_e and chi_m seems only to be true in linear electrodynamics of non-chiral materials. Furthermore, it neglects spatial dispersion. All is discussed very well in the book of Landau.
 

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