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• W2991292885 abstract "We examine the dynamics of a closed cosmology whose matter source is that of a conformally coupled scalar field with a broken ${rm SO}(1,1)$ symmetry, which correspond to the $alpha$-attractors proposed by Linde and Kallosh. Following a field redefinition, such models give rise to T-model inflationary potentials, whose dynamics provide both an inflationary phase and a classical bounce. We show that the universe can undergo bounces far from the regime of quantum gravity. We analyse perturbations on this background with particular attention given to the effects of a double-bouncing scenario (with rapid recollapse between bounces) on the long wavelength modes. We demonstrate that the predictions of such models agree well with observations and might explain the suppression of power in the low multiples of the CMB." @default.
• W2991292885 created "2019-12-05" @default.
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• W2991292885 date "2020-02-14" @default.
• W2991292885 modified "2023-09-23" @default.
• W2991292885 title "<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>T</mml:mi></mml:math> -model inflation and bouncing cosmology" @default.
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• W2991292885 doi "https://doi.org/10.1103/physrevd.101.043521" @default.
• W2991292885 hasPublicationYear "2020" @default.
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