Acceleration of the Universe, String Theory and a Varying Speed of Light

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dc.creatorMoffat, J. W.
dc.date2001-05-02
dc.date2001-06-01
dc.date.accessioned2026-07-07T04:11:37Z
dc.date.available2026-07-07T04:11:37Z
dc.descriptionThe existence of future horizons in spacetime geometries poses serious problems for string theory and quantum field theories. The observation that the expansion of the universe is accelerating has recently been shown to lead to a crisis for the mathematical formalism of string and M-theories, since the existence of a future horizon for an eternally accelerating universe does not allow the formulation of physical S-matrix observables. Postulating that the speed of light varies in an expanding universe in the future as well as in the past can eliminate future horizons, allowing for a consistent definition of S-matrix observables.
dc.description8 pages, LaTeX file, no figures. Minor typos corrected. Two references added
dc.identifierhttps://arxiv.org/abs/hep-th/0105017
dc.identifierhttp://arxiv.org/abs/hep-th/0105017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/50657
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleAcceleration of the Universe, String Theory and a Varying Speed of Light
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