Electromagnetics

 

 

electromagnetic field

• an example of four-vector
• gague field describing the photon
• composed of a scalar electric potential and a three-vector magnetic potential

 

 

four-current

• charge density and current density
• http://en.wikipedia.org/wiki/Four-current

\[J^a = \left(c \rho, \mathbf{j} \right)\]

where

c is the speed of light

ρ the charge density

j the conventional current density.

a labels the space-time dimensions

 

 

 

 

 

 

 

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참고할만한 자료

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• http://ko.wikipedia.org/wiki/
• http://en.wikipedia.org/wiki/Maxwell's_equations
• http://en.wikipedia.org/wiki/electrical_current
• http://en.wikipedia.org/wiki/Four-current
• http://viswiki.com/en/
• http://front.math.ucdavis.edu/search?a=&t=&c=&n=40&s=Listings&q=
• http://www.ams.org/mathscinet/search/publications.html?pg4=AUCN&s4=&co4=AND&pg5=TI&s5=&co5=AND&pg6=PC&s6=&co6=AND&pg7=ALLF&co7=AND&Submit=Search&dr=all&yrop=eq&arg3=&yearRangeFirst=&yearRangeSecond=&pg8=ET&s8=All&s7=
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