Published May 15, 2004
| Published + Accepted Version
Journal Article
Open
Spontaneous breaking of Lorentz invariance
- Creators
- Jenkins, Alejandro
Abstract
We describe how a stable effective theory in which particles of the same fermion number attract may spontaneously break Lorentz invariance by giving a nonzero fermion number density to the vacuum (and therefore dynamically generating a chemical potential term). This mechanism yields a finite vacuum expectation value ⟨¯ψγ^μψ⟩, which we consider in the context of proposed models that require such a breaking of Lorentz invariance in order to yield composite degrees of freedom that act approximately like gauge bosons. We also make general remarks about how the background source provided by ⟨¯ψγ^μψ⟩ could relate to work on signals of Lorentz violation in electrodynamics.
Additional Information
© 2004 American Physical Society. (Received 6 December 2003; published 14 May 2004) The author would like to thank his advisor, M. B. Wise, for his guidance, and P. Kraus, J. D. Bjorken, J. Jaeckel, H. Ooguri, K. Sigurdson, and D. O'Connell for useful exchanges. Thanks are also due to O. Bertolami and R. Lehnert for pointing out references to other work on Lorentz noninvariance which were missing from the first draft. This work was financially supported in part by the California Institute of TechnologyAttached Files
Published - PhysRevD.69.105007.pdf
Accepted Version - 0311127.pdf
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Additional details
- Eprint ID
- 76294
- Resolver ID
- CaltechAUTHORS:20170408-170839530
- Caltech
- Created
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2018-03-12Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field