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arXiv 1711.03390hep-thgr-qc
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Gauss-Bonnet理论中无毛定理的规避和新的黑洞解

Evasion of No-Hair Theorems and Novel Black-Hole Solutions in Gauss-Bonnet Theories

G. Antoniou, A. Bakopoulos, P. Kanti

摘要:

我们考虑了一个具有耦合函数f(λ)的广义Einstein-scalar-GB理论。我们证明,黑洞的解决方案出现作为一个通用的功能,这个理论,因为一个正规的地平线和渐近平坦的解决方案可以很容易地构造下温和的假设f()。我们表明,现有的无头发定理很容易回避,大量的正规,黑洞的解决方案与标量头发,然后提出了大量的耦合函数f()。

英文摘要:

We consider a general Einstein-scalar-GB theory with a coupling function f(ϕ). We demonstrate that black-hole solutions appear as a generic feature of this theory since a regular horizon and an asymptotically-flat solution may be easily constructed under mild assumptions for f(ϕ). We show that the existing no-hair theorems are easily evaded, and a large number of regular, black-hole solutions with scalar hair are then presented for a plethora of coupling functions f(ϕ).

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