Noether theorem for inhomogeneous media with allowance for phonon, polarization, and magnon excitation
Abstract
A Noether theorem is formulated for inhomogeneous elastic media, taking into account their internal excitations. The conditions are determined for which the theorem provides for the existence of conservation laws both in Eulerian and Lagrangian spaces. An expression for the energy-momentum tensor is derived.
- Publication:
-
Ukrainskii Fizicheskii Zhurnal
- Pub Date:
- July 1975
- Bibcode:
- 1975UkFiZ..20.1126B
- Keywords:
-
- Anisotropic Media;
- Elastic Media;
- Magnons;
- Phonons;
- Polarization Characteristics;
- Conservation Laws;
- Excitation;
- Existence Theorems;
- Nonequilibrium Thermodynamics;
- Relativity;
- Tensor Analysis;
- Physics (General)