Nonlinear Dynamics and Applications

2006, Vol.13, pp.207-228


Maxwell equations in Riemannian space-time, geometrical modeling of medias.
Red'kov V.M., Tokarevskaya N.G., Bychkouskaya E.M., Spix G.J.

In the paper, the known possibility to consider the (vacuum) Maxwell equations in a curved space-time as Maxwell equations in flat space-time (Mandel'stam L.I., Tamm I.E. [1,2]) but taken in an effective media the properties of which are determined by metrical structure of the initial curved model is studied. Metrical structure of the curved space-time generates the "material equations" for electromagnetic fields:

the form of four symmetrical "matherial" tensors is found explicitly for general case of an arbitrary Riemannian space-time geometry :

Several, the most simple examples are specified in detail: it is given geometrical modeling of the anisotropic media (magnetic crystals)

and the geometrical modeling of a uniform media in moving reference frame in the background of Minkowsky electrodynmamics -- the latter is realized trough the use of a non-diagonal metrical tensor determined by 4-vector velocity of the moving uniform media The main peculiarity of the geometrical generating for effective electromagnetic medias characteristics consists in the following: four tensors are not independent and obey some additional constraints between them.
Key words: Maxwell equations, curved space-time

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