Related papers: Spontaneous Lorentz symmetry breaking and cosmolog…

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This paper has been withdrawn because the models on which it was based have undergone significant changes and improvements. A new paper with the same title, based on the improved models, is accepted for publication in MNRAS and is available…

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This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.

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In this talk, I review the possibility that CPT and Lorentz symmetry might be spontaneously broken in nature by effects originating in a theory beyond the standard model, and I discuss some existing and future experimental tests.

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This paper has been withdrawn due to a crucial theoretical and experimental error.

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