Electromagnetic Field of a Dipole in an Anisotropic Medium

2005 ◽  
Vol 50 (10) ◽  
pp. 1366 ◽  
Author(s):  
A. O. Savchenko
Keyword(s):  
Electromagnetic Field ◽  
Anisotropic Medium

scholarly journals Canonical relativistic quantization of electromagnetic field in the presence of an anisotropic conductor magneto-dielectric medium

2017 ◽  
Vol 32 (35) ◽  
pp. 1750209 ◽  
Author(s):  
Majid Amooshahi
Keyword(s):  
Electromagnetic Field ◽  
Anisotropic Medium ◽  
Vector Fields ◽  
Constitutive Relations ◽  
Dielectric Medium ◽  
Antisymmetric Tensor ◽  
Tensor Fields ◽  
Conductivity Property ◽  
Strength Tensor ◽  
Homogeneous Anisotropic Medium

A canonical relativistic quantization of the electromagnetic field is introduced in the presence of an anisotropic conductor magneto-dielectric medium in a standard way in the Gupta–Bleuler framework. The medium is modeled by a continuum collection of the vector fields and a continuum collection of the antisymmetric tensor fields of the second rank in Minkowski space–time. The collection of vector fields describes the conductivity property of the medium and the collection of antisymmetric tensor fields describes the polarization and the magnetization properties of the medium. The conservation law of the total electric charges, induced in the anisotropic conductor magneto-dielectric medium, is deduced using the antisymmetry conditions imposed on the coupling tensors that couple the electromagnetic field to the medium. Two relativistic covariant constitutive relations for the anisotropic conductor magneto-dielectric medium are obtained. The constitutive relations relate the antisymmetric electric–magnetic polarization tensor field of the medium and the free electric current density four-vector, induced in the medium, to the strength tensor of the electromagnetic field, separately. It is shown that for a homogeneous anisotropic medium the susceptibility tensor of the medium satisfies the Kramers–Kronig relations. Also it is shown that for a homogeneous anisotropic medium the real and imaginary parts of the conductivity tensor of the medium satisfy the Kramers–Kronig relations and a relation other than the Kramers–Kronig relations.

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