A defect in AdS3/CFT2 duality

A bstract AdS 3 string theory in the stringy regime k = ( R AdS /ℓ s ) 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...

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Bibliographic Details
Published in:The journal of high energy physics 2022-06, Vol.2022 (6), p.24-47, Article 24
Main Author: Martinec, Emil J.
Format: Article
Language:English
Subjects:
Black holes
Boundary conditions
Classical and Quantum Gravitation
Defects
Deformation
Elementary Particles
Field theory
Gauge-Gravity Correspondence
Gravity
High energy physics
Investigations
Laboratories
Long Strings
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Quantum theory
Regular Article - Theoretical Physics
Relativity Theory
Spacetime
String Theory
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Summary:A bstract AdS 3 string theory in the stringy regime k = ( R AdS /ℓ s ) 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 semiclassically 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 ℤ 2 twist deformation that implements closed string joining/splitting. The construction thus provides an explicit example of an AdS 3 /BCFT 2 duality.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2022)024