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arXiv 1809.01658hep-thastro-ph.COgr-qchep-ph
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$α'$修正的强子引力中的弦状黑洞气体

Stringy black-hole gas in $α'$-corrected dilaton gravity

Jerome Quintin, Robert H. Brandenberger, Maurizio Gasperini, Gabriele Veneziano

摘要:

我们讨论的原始“弦”黑洞可能形成的高曲率阶段之前的反弹过渡到标准的宇宙演化阶段的气体的属性。我们表明,这种弦孔气体占主导地位的政权可以一贯描述的显式解决方案的字符串有效行动,包括一阶$α'$修正。我们提出了一个相空间分析,这样的解决方案的稳定性比较从不同的行动,包括$O(d,d)$对称配置的可能性得到的结果。

英文摘要:

We discuss the properties of the gas of primordial `stringy' black holes possibly formed in the high-curvature phase preceding the bouncing transition to the phase of standard cosmological evolution. We show that the regime dominated by such a string-hole gas can be consistently described by explicit solutions of the string effective action including first-order $α'$ corrections. We present a phase space analysis of the stability of such solutions comparing the results obtained from different actions and including the possibility of $O(d,d)$-symmetric configurations.

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