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arXiv 1101.2652hep-thastro-ph.COgr-qchep-ph
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与引力非最小耦合的混沌暴胀的观测结果

Observational consequences of chaotic inflation with nonminimal coupling to gravity

Andrei Linde, Mahdiyar Noorbala, Alexander Westphal

摘要:

最近,在势为λ(V^2-V^2)^2且与引力的非最小耦合为{<$\over 2} V^2R(其中V^2>> 1且V^2 << 1)的理论中,人们对希格斯暴胀进行了广泛的讨论。我们将这一研究扩展到具有任意值的m^2 <$^2和λ(<$^2-v^2)^2理论,并描述了这些模型在超引力中的实现。我们分析了这些模型的观测结果,发现λ(v^2-v^2)^2模型的暴胀预言在极限λ <0时惊人地一致|ξ| v^2 \to 1与希格斯暴胀情景的预测,其中希格斯暴胀情景为π>> 1。

英文摘要:

Recently there was an extensive discussion of Higgs inflation in the theory with the potential λ(ϕ^2-v^2)^2 and nonminimal coupling to gravity {ξ\over 2}ϕ^2R, for ξ>> 1 and v<< 1. We extend this investigation to the theories m^2ϕ^2 and λ(ϕ^2-v^2)^2 with arbitrary values of ξand v and describe implementation of these models in supergravity. We analyze observational consequences of these models and find a surprising coincidence of the inflationary predictions of the model λ(ϕ^2-v^2)^2 with ξ<0 in the limit |ξ|v^2 \to 1 with the predictions of the Higgs inflation scenario for ξ>> 1.

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