On preheating in $$\alpha $$ α -attractor models of inflation

Abstract We study (p)reheating in $$\alpha $$ α -attractor T-models of inflation, taking into account both scalar fields present in these models: the inflaton and the spectator. The two-field model has a negative field-space curvature which, at the end of inflation, may lead to geometrical destabili...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2019-08, Vol.79 (8), p.1-17
Hauptverfasser: Tomasz Krajewski, Krzysztof Turzyński, Michał Wieczorek
Format: Artikel
Sprache:eng
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Zusammenfassung:Abstract We study (p)reheating in $$\alpha $$ α -attractor T-models of inflation, taking into account both scalar fields present in these models: the inflaton and the spectator. The two-field model has a negative field-space curvature which, at the end of inflation, may lead to geometrical destabilization of the spectator for small values of $$\alpha {\mathop {{}_\sim }\limits ^{
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-019-7155-z