The total energy--momentum tensor for electromagnetic fields in a dielectric
Michael E. Crenshaw
TL;DR
This paper discusses the construction and uniqueness of the total energy--momentum tensor for electromagnetic fields in linear dielectrics, emphasizing the combined electromagnetic and material contributions and their conservation laws.
Contribution
It introduces a framework for constructing the total energy--momentum tensor that unifies electromagnetic and material components in dielectrics, ensuring its uniqueness.
Findings
The total energy--momentum tensor is uniquely defined for electromagnetic fields in dielectrics.
Conservation laws are established for the combined electromagnetic and material components.
The framework clarifies the relationship between different formulations of energy--momentum tensors.
Abstract
There are various formulations of energy--momentum tensors for an electromagnetic field in a linear dielectric. The total energy--momentum tensor, comprised of electromagnetic and material components, must be unique. We discuss the construction of the total energy--momentum tensor and the associated conservation laws.
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Taxonomy
TopicsQuantum and Classical Electrodynamics · Electromagnetic Scattering and Analysis · Scientific Research and Discoveries