On AdS3/ICFT2 with a dynamical scalar field located on the brane

A bstract We exploit the holographic duality to study the system of a one-dimensional interface contacting two semi-infinite two-dimensional CFTs. Central to our investigation is the introduction of a dynamical scalar field located on the bulk interface brane which breaks the scaling symmetry of the...

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Bibliographic Details
Published in:The journal of high energy physics 2024-10, Vol.2024 (10), p.1-54, Article 1
Main Authors: Liu, Yan, Lyu, Hong-Da, Wang, Chuan-Yi
Format: Article
Language:English
Subjects:
AdS-CFT Correspondence
Black Holes
Branes
Classical and Quantum Gravitation
Elementary Particles
Energy
Entanglement
Entropy
Field theory
Gauge-Gravity Correspondence
Holography
Interfaces
Investigations
Physics
Physics and Astronomy
Quantum dots
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Scalars
String Theory
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Summary:A bstract We exploit the holographic duality to study the system of a one-dimensional interface contacting two semi-infinite two-dimensional CFTs. Central to our investigation is the introduction of a dynamical scalar field located on the bulk interface brane which breaks the scaling symmetry of the dual interface field theory, along with its consequential backreaction on the system. We define an interface entropy from holographic entanglement entropy, to construct a g -function. At zero temperature we construct several illustrative examples and consistently observe that the g -theorem is always satisfied. These examples also reveal distinct features of the interface entropy that are intricately linked to the scalar potential profiles. At finite temperature we find that the dynamical scalar field enables the bulk theory to have new configurations which would be infeasible solely with a tension term on the interface brane.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP10(2024)001