Gregory-Laflamme与超辐射遭遇黑共振弦
Gregory-Laflamme and Superradiance encounter Black Resonator Strings
AI总结：
本文构造了具有螺旋Killing向量场的黑共振弦，它们从D=6 Myers-Perry黑弦的超辐射不稳定性分叉而来，且在共存参数下熵更高，同时发现Kaluza-Klein geon是独立解而非其无视界极限。
AI中文摘要：
我们构造了新颖的黑弦，它们既非时间平移不变，也非轴对称，且在弦方向上非平移不变，但仍具有螺旋Killing向量场。这些解从具有等角动量的D=6 Myers-Perry黑弦的超辐射不稳定性分叉而来。我们将这些解命名为黑共振弦，并发现在两者共存的能量和角动量范围内，它们比Myers-Perry黑弦具有更高的熵。我们还构造了Kaluza-Klein geon，它们与黑共振弦共享对称性，但无视界。与其他超辐射系统不同，Kaluza-Klein geon并非黑共振弦的无视界极限，而是完全独立的解。
英文摘要：
We construct novel black strings that are neither time-translation invariant, nor axisymmetric, nor translationally invariant in the string direction, but nevertheless have a helical Killing vector field. These solutions branch from the superradiant instability of $D=6$ Myers-Perry black strings with equal angular momenta. We coin these solutions as {\it black resonator strings} and we find that they have more entropy than Myers-Perry black strings for the energies and angular momenta where both solutions coexist. We also construct Kaluza-Klein geons, which share the symmetries of black resonator strings, but are horizonless. Unlike in other superradiant systems, Kaluza-Klein geons are not the horizonless limit of black resonator strings and are instead entirely separate solutions.
