Examples of uniformly moving charge distributions that possess conserved electromagnetic stress tensors are exhibited. These constitute stable systems with covariantly characterized electromagnetic mass. This note, on a topic to which Paul Dirac made a significant contribution in 1938, is dedicated to him for his 80th birthday.
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F. Rohrlich,Classical Charged Particles (Addison-Wesley, Reading, 1965).
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Schwinger, J. Electromagnetic mass revisited. Found Phys 13, 373–383 (1983). https://doi.org/10.1007/BF01906185
- Stress Tensor
- Significant Contribution
- Charge Distribution
- Stable System
- 80th Birthday