Self tuning scalar tensor black holes
Self tuning scalar tensor black holes
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自调整标量张量黑洞
DOI：
10.1088/1742-6596/600/1/012003
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Damianos Iosifidis
中科院分区：
文献类型：
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作者：
C. Charmousis;Damianos Iosifidis
研究了高阶Horndeski（标量张量）理论的一个子类，讨论了最近发现的一种具有非平凡正则标量场的解析黑洞解的方法。其中一个解具有德西特渐近性，并且可以自调整体积宇宙学常数。利用上述方法，我们发现并分析了新的黑洞解，这些解也可能具有德西特渐近性。通过观察负责自调谐的积分常数的小偏差，我们讨论了自调谐机制的鲁棒性。我们发现先前发现的解的邻近解也具有不变的有效宇宙学常数的自调谐性质。
Studying a certain sub class of higher order Horndeski (scalar-tensor) theories we discuss a method discovered recently permitting analytic black hole solutions with a non trivial and regular scalar field. One of the solutions found has de Sitter asymptotics and self tunes the bulk cosmological constant. Using the aforementioned method we find and analyse new black hole solutions which can also have de Sitter asymptotics. By looking at small deviations of the integration constant responsible for self tuning we discuss the robustness of the self tuning mechanism. We find that neighboring solutions to the one previously found present also self tuning properties with unaltered effective cosmological constant.