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Master's Dissertation
DOI
https://doi.org/10.11606/D.43.2020.tde-24032020-103415
Document
Author
Full name
Giulio Halisson Camillo da Silva
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2020
Supervisor
Committee
Rivelles, Victor de Oliveira (President)
Melnikov, Dmitry
Nastase, Horatiu Stefan
Title in English
Wilson Lines as Superconformal Defects
Keywords in English
CFT
defect CFT
deformed Wilson loops
displacement operator
Abstract in English
This dissertation started as a review of the relation between deformations of straight Wilson lines in N=4 super Yang-Mills theory and conformal field theory (CFT) correlators of local operators inserted along that Wilson line, which can then be thought of as a defect defining a defect CFT. These deformations/correlators capture interesting physical content, such as the Bremsstrahlung function of the theory. The work evolved subsequently to trying to extend this relation to the case of the ABJM theory in three dimensions. I start by recalling all the necessary ingredients to understand this relation and perform the corresponding calculations, from the basics of CFTs and CFTs with defects/boundaries to the study of (supersymmetric) Wilson loops in the theories mentioned above. With this groundwork in place, I set up the analysis of 2- and 3-point functions of so-called displacement operators inserted along a 1/2 BPS Wilson line of ABJM theory.
Title in Portuguese
Linhas de Wilson como defeitos superconformes
Keywords in Portuguese
CFT
CFT com defeito
laços de Wilson deformados
operador deslocamento
Abstract in Portuguese
Esta dissertação começou como uma revisão da relação entre deformações de linhas de Wilson na teoria de N=4 super Yang-Mills e funções de correlação de teoria de campos conformes (CFT) feitas de inserções de operadores locais ao longo daquela linha de Wilson, que pode então ser pensada como um defeito definindo uma CFT com defeito. Estas deformações/funções de correlação capturam conteúdo físico interessante, como por exemplo a função Bremstrahlung da teoria. O trabalho evoluiu posteriormente a uma tentativa de estender aquela relação para o caso da teoria ABJM em três dimensões. Eu começo recordando todos os ingredientes necessários para entender essa relação e executar os cálculos correspondentes, desde o básico de CFTs e CFTs com defeitos/barreiras até o estudo de laços de Wilson (supersimétricos) nas teorias mencionadas acima. Com essas bases colocadas, eu monto a análise das funções de 2- e 3- pontos dos chamados operadores deslocamento inseridos ao longo da linha de Wilson 1/2 BPS da teoria ABJM.
 
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Publishing Date
2020-05-12
 
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