Harmonic superspace from the Ad'S IND. 5' × 'S POT. 5' pure spinor formalism

Autor(es)

Thiago Simonetti Fleury

• Tipo de documento: Tese de Doutorado
• Imprenta: São Paulo. 2014-08-27.
• Instituição: Universidade Estadual Paulista (Unesp). Instituto de Física Teórica (IFT). São Paulo
• Data de defesa: 2013-09-17
• Orientador: Nathan Jacob Berkovits

Resumo

The Maldacena’s conjecture or (AdS/CFT) has been one of the most studied topics in high energy physics since its formulation. One of the versions of the conjecture is the duality between the theory of type IIB superstrings in the background Ad'S IND. 5' × 'S POT. 5' supported by a Ramond-Ramond ?ux and the theory of N = 4 superYang-Mills in four dimensions. Although the action for the superstrings in this background is known both in the Green-Schwarz and in the pure spinor formalisms, an explicit super?eld construction of the vertex operators of the theory is an open problem. In this thesis, using the pure spinor formalism, we explicitly construct the vertex operators corresponding to supergravity states close to the boundary ofAdS. The conjecture predicts that every on-shell superstring state is dual to a gaugeinvariant operator of N = 4d = 4 super-Yang-Mills, in particular, the supergravity states are dual to Half-BPS operators. It is possible to describe all the Half-BPS operators and their duals as super?elds in harmonic superspace. The results for the vertex operators are described in terms of these dual super?elds in agreement with the prediction of the conjecture (AU)

• Processo FAPESP: 09/50775-3 - Backgrounds compactificados no formalismo de spinores puros da supercorda
• Beneficiário: Thiago Simonetti Fleury
• Modalidade de apoio: Bolsas no Brasil - Doutorado