标题： 腔内引力带电标量孤子的稳定性 显示英文标题

标题： Stability of gravitating charged-scalar solitons in a cavity

摘要： 我们提出了爱因斯坦-带电标量场理论在腔内新的正则解。 该系统被封闭在一个反射镜状边界之内，在此边界上标量场消失。 镜子放置在标量场的零点处，该零点最接近原点，并且在这个边界内部，我们的解是正则的。 我们研究了这些孤子在度规、标量场和电磁场的线性球对称扰动下的稳定性。 如果镜子的半径足够大，我们提供了孤子稳定的数值证据。 对于小镜子半径，某些孤子是不稳定的。 我们讨论了这种不稳定性的物理意义。 显示英文摘要

摘要： We present new regular solutions of Einstein-charged scalar field theory in a cavity. The system is enclosed inside a reflecting mirror-like boundary, on which the scalar field vanishes. The mirror is placed at the zero of the scalar field closest to the origin, and inside this boundary our solutions are regular. We study the stability of these solitons under linear, spherically symmetric perturbations of the metric, scalar and electromagnetic fields. If the radius of the mirror is sufficiently large, we present numerical evidence for the stability of the solitons. For small mirror radius, some of the solitons are unstable. We discuss the physical interpretation of this instability.