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arXiv 1609.04013gr-qchep-th
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对称非继承标量黑洞头发的约束

Constraints on the symmetry noninheriting scalar black hole hair

Ivica Smolić

摘要:

任何让黑洞长出毛发的方法都必须违反无毛发定理的某些假设,从而绕过无毛发定理。最近发现的多毛黑洞解的存在是因为它们的标量场没有继承时空度规的对称性。我们在这里提出了一个一般性的分析,限制可能的形式,这样的头发,为真正的和复杂的标量场的约束。这些结果可以被视为黑洞唯一性定理的一个新颖部分,或者简单地作为对称性非继承Ansätze指南。此外,我们介绍了新的分类的引力场方程,可能证明有用的各种推广的定理与对称性的时空。

英文摘要:

Any recipe to grow black hole hair has to circumvent no-hair theorems by violating some of their assumptions. Recently discovered hairy black hole solutions exist due to the fact that their scalar fields don't inherit the symmetries of the spacetime metric. We present here a general analysis of the constraints which limit the possible forms of such a hair, for both the real and the complex scalar fields. These results can be taken as a novel piece of the black hole uniqueness theorems or simply as a symmetry noninheriting Ansätze guide. In addition we introduce new classification of the gravitational field equations which might prove useful for various generalizations of the theorems about spacetimes with symmetries.

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