Spontaneous Symmetry Breaking of Lorentz and (Galilei) Boosts in (Relativistic) Many-Body Systems
Abstract
We extend a result by Ojima on spontaneous symmetry breaking of Lorentz boosts in thermal (KMS) states and show that it is in fact a special case in a more general class of examples of spontaneous symmetry breaking of Lorentz symmetry in relativistic many-body systems. Furthermore we analyse the nature of the corresponding Goldstone phenomenon and the type of Goldstone excitations (provided they have particle character).
- Publication:
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arXiv e-prints
- Pub Date:
- May 2008
- DOI:
- 10.48550/arXiv.0805.3022
- arXiv:
- arXiv:0805.3022
- Bibcode:
- 2008arXiv0805.3022R
- Keywords:
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- High Energy Physics - Theory;
- Condensed Matter - Statistical Mechanics
- E-Print:
- 31 pages, no figures, Latex