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arXiv 2104.04995gr-qcastro-ph.CO
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用Gauss-Bonnet项和非最小耦合构造暴胀情景

Construction of inflationary scenarios with the Gauss-Bonnet term and nonminimal coupling

Ekaterina O. Pozdeeva, Sergey Yu. Vernov

摘要:

研究了具有既有Ricci标量项又有Gauss-Bonnet项的非极小耦合标量场的暴胀模型。我们提出了将具有Gauss-Bonnet项和与Ricci标量最小耦合的标量场的暴胀情形推广到相应的具有与Ricci标量非最小耦合的标量场的暴胀情形的方法。利用有效势,我们构造了一组标量谱指数$n_s$和标量扰动幅度$A_s$相同,张量标量比$r$不同的模型.

英文摘要:

Inflationary models with a scalar field nonminimally coupled both with the Ricci scalar and with the Gauss-Bonnet term are studied. We propose the way of generalization of inflationary scenarios with the Gauss-Bonnet term and a scalar field minimally coupled with the Ricci scalar to the corresponding scenarios with a scalar field nonminimally coupled with the Ricci scalar. Using the effective potential, we construct a set of models with the same values of the scalar spectral index $n_s$ and the amplitude of the scalar perturbations $A_s$ and different values of the tensor-to-scalar ratio $r$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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