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U(1) symmetric $\alpha$-attractors

· 2018 · hep-th · arXiv 1802.04848

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abstract

We present a class of supergravity $\alpha$-attractors with an approximate global U(1) symmetry corresponding to the axion direction. We also develop a multi-field generalization of these models and show that the $\alpha$-attractor models with U(1) symmetries have a dual description in terms of a two-form superfield coupled to a three-form superfield.

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representative citing papers

Behaviour of $\alpha$-attractors in Warm Inflation

astro-ph.CO · 2025-06-10 · reject · novelty 5.0

In strongly dissipative warm inflation, T, E, and polynomial alpha-attractor models lose the cold-inflation attractor convergence in the n_s-r plane.

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  • Behaviour of $\alpha$-attractors in Warm Inflation astro-ph.CO · 2025-06-10 · reject · none · ref 59 · internal anchor

    In strongly dissipative warm inflation, T, E, and polynomial alpha-attractor models lose the cold-inflation attractor convergence in the n_s-r plane.