标题： 深入多带全息超导体 显示英文标题

标题： Diving into a multi-band holographic superconductor

摘要： 在本文中，我们考虑多带全息超导体模型的内部结构。我们关注具有两个标量场的全息超导体系统，这两个标量场对应于对偶凝聚态系统中的两个s波序参量。具有两个s波序参量的边界系统表现出更有趣的行为，这些行为也可以在黑洞内部结构中得到反映。我们发现视界内存在爱因斯坦-罗森桥塌缩和两个标量场的约瑟夫森振荡。对于接近奇点的区域，我们发现度规仍然呈现卡斯纳形式，并且也存在卡斯纳转变行为。然而，当两个标量场共存时，卡斯纳指数和卡斯纳转变公式将与单个标量场的情况不同。我们在本工作中发现的多带全息超导体与单带全息超导体之间的不同内部结构进一步证实了黑洞内部对于反映对偶凝聚态系统性质的重要性。 显示英文摘要

摘要： In this paper, we consider the interior structure of a multi-band holographic superconductor model. We focus on the holographic superconductor system with two scalar fields which correspond to two s-wave order parameters in the dual condensed matter system. With two s-wave order parameters, the boundary system has more interesting behaviors which can also be reflected in black hole interior structure. We find the Einstein-Rosen bridge collapse and Josephson oscillations of two scalar fields inside the horizon. For the region near the singularity, we find that the metric still presents Kasner form and there is also Kasner transition behavior. However, when two scalar fields coexist, the Kasner exponents and Kasner transition formula will be different from the single scalar field case. The different interior structures between multi-band holographic superconductor and single-band holographic superconductor we find in this work further confirms that the black hole interior is important to reflect the properties of dual condensed matter systems.