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Cosmology and spacetime symmetries

Ralf Lehnert
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Abstract

Cosmological models often contain scalar fields, which can acquire global nonzero expectation values that change with the comoving time. Among the possible consequences of these scalar-field backgrounds, an accelerated cosmological expansion, varying couplings, and spacetime-symmetry violations have recently received considerable attention. This talk studies the interplay of these three key signatures of cosmologically varying scalars within a supergravity framework.

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Ralf Lehnert. 2005-08-31. Cosmology and spacetime symmetries. https://doi.org/10.1142/9789812774439_0032

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