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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Buraco negros, correspond?ncia AdS/BCFT e fluido/gravidade / Black hole, AdS/BCFT and fluid/gravity correspondences

Silva, Madson Rubem Oliveira 22 May 2015 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-22T19:28:11Z No. of bitstreams: 1 MadsonRubemOliveiraSilva_TESE.pdf: 1495464 bytes, checksum: 0d35c3d788f1373d1f29cb97ab81c05a (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-23T23:12:57Z (GMT) No. of bitstreams: 1 MadsonRubemOliveiraSilva_TESE.pdf: 1495464 bytes, checksum: 0d35c3d788f1373d1f29cb97ab81c05a (MD5) / Made available in DSpace on 2016-03-23T23:12:57Z (GMT). No. of bitstreams: 1 MadsonRubemOliveiraSilva_TESE.pdf: 1495464 bytes, checksum: 0d35c3d788f1373d1f29cb97ab81c05a (MD5) Previous issue date: 2015-05-22 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / A equa??o de Einstein com constante cosmol?gica negativa gera um espa?o-tempo d + 1?dimens?es, que denominamos de espa?o anti de Sitter, AdSd+1, que nos referimos de "bulk". O principio hologr?fico afirma que a gravidade qu?ntica sobre o AdSd+1 ? codificada por uma teoria de contorno, uma CFTd. Por exemplo, uma teoria de cordas IIB sobre uma espa?o-tempo assintoticamente AdS5 ? S 5 ? dual a uma teoria de gauge de super Yang-Mills N = 4 SYM no espa?o-tempo de 4?dimens?es. Outro exemplo ? a rela- ??o entre a equa??o de Einstein no "bulk"e a equa??o hidrodin?mica descreve uma teoria efetiva no contorno, o qual denominamos de fluido/gravita??o. Uma extens?o da dualidadeAdS/CFT foi proposta por Takayanagi que denominou de correspond?ncia AdS/BCFT. O contorno do CFT extende-se para o "bulk"e restringe o AdSd+1. Quando impomos a condi??o de Neumann sobre a extens?o do contorno obtemos uma equa??o de movimento din?mica que determina a forma da extens?o. Da perspectiva da correspond?ncia fluido/gravita??o o tensor energia-momento do fluido residindo no contorno ser? a fonte da geometria do "bulk". Ampliando a proposta de Takayanagi para correspond?ncia fluido/gravita??o estudaremos a consist?ncia do AdS/BCFT a temperatura finita ou equivalentemente a geometria de BH no "bulk". / Einstein?s equations with negative cosmological constant possess the so-called anti de Sitter space, AdSd+1, as one of its solutions. We will later refer to this space as to the "bulk". The holographic principle states that quantum gravity in the AdSd+1 space can be encoded by a d?dimensional quantum field theory on the boundary of AdSd+1 space, invariant under conformal transformations, a CFTd. In the most famous example, the precise statement is the duality of the type IIB string theory in the space AdS5 ? S 5 and the 4?dimensional N = 4 supersymmetric Yang-Mills theory. Another example is provided by a relation between Einstein?s equations in the bulk and hydrodynamic equations describing the effective theory on the boundary, the so-called fluid/gravity correspondence. An extension of the "AdS/CFT duality"for the CFT?s with boundary was proposed by Takayanagi, which was dubbed the AdS/BCFT correspondence. The boundary of a CFT extends to the bulk and restricts a region of the AdSd+1. Neumann conditions imposed on the extension of the boundary yield a dynamic equation that determines the shape of the extension. From the perspective of fluid/gravity correspondence, the shape of the Neumann boundary, and the geometry of the bulk is sourced by the energy-momentum tensor T?? of a fluid residing on this boundary. Clarifying the relation of the Takayanagi?s proposal to the fluid/gravity correspondence, we will study the consistence of the AdS/BCFT with finite temperature CFT?s, or equivalently black hole geometries in the bulk.

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