Detalhes bibliográficos
| Ano de defesa: |
2008 |
| Autor(a) principal: |
Lopes, Rafael Christ de Castro |
| Orientador(a): |
FERREIRA JUNIOR, Manoel Messias |
| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal do Maranhão
|
| Programa de Pós-Graduação: |
PROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA/CCET
|
| Departamento: |
FISICA
|
| País: |
BR
|
| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
http://tedebc.ufma.br:8080/jspui/handle/tede/712
|
Resumo: |
The scale of Planck, a system of energy in the order of 1019GeV, there is an area unknown to the current Physics. It is believed that this regime must occur at unification of two fundamental theories of physics: the Theory of General Relativity and Mechanics Quantum. A question of interest is whether the symmetry of Lorentz remains valid on the scale of the Planck energy, which can guide the construction of new theories to quantum gravity. Such investigations are currently carried out within the framework theorist of Estendido Standard Model, an extension of the usual Standard Model, which incorporates the terms violators of Lorentz and TLC. In this work, it investigated the influence violators of the terms of Lorentz symmetry and CPT on the dynamics of a system 2-level semi-classic. The starting point is the limit of non-relativistico of Dirac equation modified, which provides the terms of violation that must be included in Hamiltoniano the system. Making up this, realizes that the word rapist on coupling \ vector "v ¹ Ã ° ¹ Ã induces changes in the role reversal of population (PIF) to some sets of values of parameters were no large changes in the sine curve usual, modifying the homogeneity of FIP through peaks reversed. The frequency of oscillation of FIP presented a dependency on the background that has become even more that the frequency of Rabi-R. For some specific values of the parameters background induces a modulation type beat. Moreover, the word rapist on coupling \ axial "b ¹ Ã ° 5 ° ¹ Ã, led the definition of FIPs two: one to describe the oscillation of spins, another to describe the oscillation in the states of energy. In the case of a background type space, it was observed that some settings generated fluctuations of energy and spin. The non-experimental observation of the effects generated by the background in two couplings allowed the establishment of an upper limit on its magnitude: jvj <10 ¡10eV and jbj <10 ¡19eV: |
