2018
DOI: 10.1590/1806-9126-rbef-2018-0093
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Gases de átomos Fermiônicos aprisionados por uma rede quase periódica e um potencial harmônico bidimensional

Abstract: Resumo Neste trabalho, nós consideramos um modelo tridimensional dinâmico de um gás de férmions em um estado superfluido de Bardeen-Cooper-Schrieffer aprisionado por uma rede óptica quase periódica unidimensional e na presença de um potencial externo em forma de charuto. Através da aproximação variacional, estudamos a possibilidade de que o coeficiente de não linearidade atuando em uma combinação com o potencial da rede óptica quase periódica e potencial em forma de charuto permite o surgimento de sólitons tri… Show more

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“…We can see that, as the depth of the potential increases, the chemical potential decreases through linear behavior. In this adopted interval, the results obtained from the chemical potential µ versus amplitude V 0 showed similar results observed in studies of Bose-Einstein condensates and Superfluid Fermi gases in optical lattices and optical superlattices (doubly periodic and quasiperiodic) [41][42][43][44][45]. Variational and numerical results of chemical potential, µ, versus amplitude, V 0 , of PT potential −V 0 sech 2 (x).…”
Section: Discussionsupporting
confidence: 83%
“…We can see that, as the depth of the potential increases, the chemical potential decreases through linear behavior. In this adopted interval, the results obtained from the chemical potential µ versus amplitude V 0 showed similar results observed in studies of Bose-Einstein condensates and Superfluid Fermi gases in optical lattices and optical superlattices (doubly periodic and quasiperiodic) [41][42][43][44][45]. Variational and numerical results of chemical potential, µ, versus amplitude, V 0 , of PT potential −V 0 sech 2 (x).…”
Section: Discussionsupporting
confidence: 83%