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arXiv 2104.01917gr-qc
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非最小恒滚暴胀中的广义$sl(2, R)$和$su(1, 1)$

The generalized $sl(2, R)$ and $su(1, 1)$ in non-minimal constant-roll inflation

Mehdi Shokri, Jafar Sadeghi, Mohammad Reza Setare

摘要:

在目前的工作中,我们考虑的非最小耦合暴胀模型的背景下的恒定滚动的想法,这是研究的一阶形式。我们试图通过Lie对称性方法来发现隐藏在模型背后的对称性。我们利用Heun函数的对称性来代替Killing向量的方法来达到这个目的。我们证明了幂律耦合和指数耦合情形下的非最小恒滚暴胀的隐对称性分别刻画为$sl(2, R)$和$su(1, 1)$代数的推广形式.

英文摘要:

In the present work, we consider the non-minimal coupling inflationary model in the context of the constant-roll idea which is investigated by the first-order formalism. We attempt to find the hidden symmetries behind the model by the Lie symmetry method. We supply this aim by using the symmetry features of the Heun function instead of Killing vector approach. We show that the hidden symmetries of the non-minimal constant-roll inflation in the cases of power-law and exponential couplings are characterized as a generalized form of $sl(2, R)$ and $su(1, 1)$ algebra, respectively.

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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