论文标题
全息bcft有缺陷的世界末日
Holographic BCFT with a Defect on the End-of-the-World Brane
论文作者
论文摘要
在本文中，我们通过引入连接两个世界末日的臀部的缺陷，提出了一个新的重力双重二元，并带有两个共同边界。我们证明了该大型模型的BCFT对偶表现出最低的频谱。相应的最低能量特征值可以在$ - \ frac {πc} {24ΔX} $和$ 0 $之间连续插值，其中$ΔX$是边界之间的距离。对于具有不同边界条件的常规ADS/BCFT模型，该范围无法访问。我们计算全息纠缠熵，发现它表现出三个不同的阶段，其中一个阶段打破了时间反射对称性。我们还构建了一个虫洞鞍座，类似于$ 3 $ d的复制虫孔，该虫洞通过广告大体连接不同的边界。仅当BCFT是非独立的，并且与断开的鞍座相比，该鞍座才存在。
In this paper, we propose a new gravity dual for a $2$d BCFT with two conformal boundaries by introducing a defect that connects the two End-of-the-World branes. We demonstrate that the BCFT dual to this bulk model exhibits a richer lowest spectrum. The corresponding lowest energy eigenvalue can continuously interpolate between $-\frac{πc}{24Δx}$ and $0$ where $Δx$ is the distance between the boundaries. This range was inaccessible to the conventional AdS/BCFT model with distinct boundary conditions. We compute the holographic entanglement entropy and find that it exhibits three different phases, one of which breaks the time reflection symmetry. We also construct a wormhole saddle, analogous to a $3$d replica wormhole, which connects different boundaries through the AdS bulk. This saddle is present only if the BCFT is non-unitary and is always subdominant compared to the disconnected saddle.
