Sudden Singularities in Brans-Dicke Cosmology and its Generalisations

31 Jan 2020  ·  Barrow John D. ·

We show that cosmological sudden singularities that respect the energy conditions can occur at finite times in Brans-Dicke and more general scalar-tensor theories of gravity. We construct these explicitly in the Friedmann universes... Higher-order versions of these singularities are also possible, including those that arise with when scalar fields have a self-interaction potential of power-law form.7 pages, no figures read more

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General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory