{"paper":{"title":"Lorentz-Violating Vector Fields Slow the Universe Down","arxiv_id":"hep-th/0407149","primary_cat":"hep-th","submitted_at":"2004-07-17T00:52:26+00:00","version_compiled":"v3"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13-20260917 on the question bank abstract-p1-20260923, exactly as returned. 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