Physics – Condensed Matter
Scientific paper
1996-03-21
J. Theor. Math. Comp. Phys. 2 (1999) 27
Physics
Condensed Matter
LaTeX, 23 pages
Scientific paper
Development of quantum engineering put forward new theoretical problems. Behavior of a single mesoscopic cell (device) we may usually describe by equations of quantum mechanics. However if experimentators gather hundreds of thousands of similar cells there arises some artificial medium that one already needs to describe by means of new electromagnetic equations. The same problem arises when we try to describe e.g. a sublattice structure of such complex substances like perovskites. It is demonstrated that the inherent primacy of vector potential in quantum systems leads to a generalization of the equations of electromagnetism by introducing in them toroid polarizations. To derive the equations of motion the Lagrangian and the Hamiltonian formalisms are used. Some examples where electromagnetic properties of molecules are described by the toroid moment are pointed out.
Dubovik Vladimir M.
Martsenyuk M. A.
Saha Bijan
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