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Master's Dissertation
DOI
10.11606/D.43.2009.tde-06052010-120027
Document
Author
Full name
Paulo Henrique Flose Reimberg
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2009
Supervisor
Committee
Abramo, Luis Raul Weber (President)
Barata, Joao Carlos Alves
Matsas, George Emanuel Avraam
Title in Portuguese
Polarização da radiação cósmica de fundo
Keywords in Portuguese
Cosmologia
Equação de Boltzmann
Polarização
Radiação de fundo
Abstract in Portuguese
Utilizando conceitos de macânica quântica e teoria cinética apresentamos uma rederivação da equação de Boltzmann para a polarização. Mostramos a equivalência entre a equação que derivamos e a equação de Boltzmann encontrada na literatura ( [1], [2], [3] ) além de mostrar que essas derivações correspondem a considerar-se o efeito, sobre a polarização dos fótons da radiação cósmica de fundo, de dois espalhamentos Thompson com elétrons durante recombinação. Conduzimo-nos, ainda, a descrever a polarização completamente no espaço real, como iniciado em [4] em um caso especial. Mostramos a possibilidade dessa conversão, recobramos a geometria que está associada ao estudo do problema no espaço real e verificamos satisfeitas as condições de causalidade.
Title in English
Cosmic microwave background polarization
Keywords in English
Boltzmann´s equation
Cosmic microwave background
Cosmology
Polarization
Abstract in English
Applying concepts of quantum mechanics and kinetic theory we show a re-derivation of Boltzmann equation for the Cosmic Microwave Background (CMB) polarization. We show the equivalence between our derivation and those already known ( [1], [2], [3] ) and also that these derivations correspond to take into account the effect, on the photon polarization, of two Thompson scattering on electrons while decoupling from matter. We adress ourselves, then, to give a complete formalism for the CMB polarization problem in real space, as started in [4] in a special case. Besides the possibility of complete treatment of the problem in real space, we recover the geometry that describes it and that tha causal relations are satisfied.
 
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cmbpol.pdf (1.24 Mbytes)
Publishing Date
2010-05-12
 
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