论文标题
ADS3/CFT2二元性缺陷
A Defect in AdS3/CFT2 Duality
论文作者
论文摘要
$ ads_3 $ string理论中的弦乐制度$ k =（r_ {ads}/\ ell_ {str}）^2 <1 $ $提供了一个实验室，用于研究全息图，其中ADS/CFT二元性的双方都在相当良好的控制下。世界表弦理论是可以解决的，对于封闭字符串，双空间CFT是对称产品Orbifold的变形。在这里，我们扩展了此结构，以包括开放字符串，通过添加探针D弦线，该弦线弦弦，由$ ADS_3 $中的$ ads_2 $ d-brane半传统描述。双重缺陷或边界形式形式结构场理论（BCFT）再次是一种变形的对称产品，现在它描述了ADS边界附近长期开放和封闭条件的Fock空间，除了实现对称产品$ {\ MathBB z} _2 $ twist _2 $ twist tweformation noffement offormations封闭字符串连接的连接/分别符合对称性产品外，还实现了开放/封闭的过渡。因此，该构建提供了一个明确的示例，以$ ads_3/bcft_2 $双重性。
$AdS_3$ string theory in the stringy regime $k=(R_{AdS}/\ell_{str})^2 < 1$ provides a laboratory for the study of holography in which both sides of AdS/CFT duality are under fairly good control. Worldsheet string theory is solvable, and for closed strings the dual spacetime CFT is a deformation of a symmetric product orbifold. Here we extend this construction to include open strings by adding a probe D-string, described semi-classically by an $AdS_2$ D-brane in $AdS_3$. The dual defect or boundary conformal field theory (BCFT) is again a deformed symmetric product, which now describes the Fock space of long open and closed strings near the AdS boundary, with a boundary deformation implementing the open/closed transition in addition to the symmetric product ${\mathbb Z}_2$ twist deformation that implements closed string joining/splitting. The construction thus provides an explicit example of an $AdS_3/BCFT_2$ duality.
