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Efeitos de flutuações quânticas em um modelo vidro de spin com cluster
(Universidade Federal de Santa Maria, 2019-05-29)
In this work we study the effects of quantum fluctuations in a disordered magnetic system.
We consider a cluster-spin Ising model with antiferromagnetic short range interactions (J0)
and disordered long range interactions ...
Análise de agrupamentos a partir de parâmetros morfométricos para identificar classes morfológicas de galáxias
(Universidade Federal de Santa Maria, 2019-07-10)
To understand galaxies processes of formation and evolution, it is essential to identify properties
that allow their classification. It is common to perform this type of classification through
visual and individual ...
Supercondutividade na presença de correlações que podem gerar pseudogap
(Universidade Federal de Santa Maria, 2019-09-30)
Since the discovery of superconductivity at high temperatures in 1986, the problem
of correlations in superconductivity has received a lot of attention, but it remains as
an open problem in condensed matter physics. In ...