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Doctoral Thesis
DOI
10.11606/T.43.2007.tde-01042008-143352
Document
Author
Full name
Vicente Pereira de Barros
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2007
Supervisor
Committee
Gammal, Arnaldo (President)
Bagnato, Vanderlei Salvador
Kraenkel, Roberto Andre
Passos, Emerson Jose Veloso de
Pires, Marcelo Oliveira da Costa
Title in Portuguese
Perturbações temporais em condensados de Bose-Einstein diluídos e vórtice em condensados densos
Keywords in Portuguese
Condensados de Bose-Einstein
Física Estatísitca
Mecânica quântica
Abstract in Portuguese
Neste trabalho estudamos a interação entre dois sólitons em condensados de Bose-Einstein diluídos submetidos a perturbações temporais nos potencias de armadilhamento e interação entre as partículas. Em condensados de Bose-Einstein densos estudamos a inserção do termo cinético indo além da aproximação de Thomas-Fermi e seu efeito na velocidade crítica para a formação de vórtices no condensado.
Title in English
Time dependent perturbation in dilude Bose Einstein Condensate and vortex in dense condensate.
Keywords in English
Bose-Einstein Condensation
Quantum Mechanics
Statiscal Physics
Abstract in English
In this work we studied the soliton interactions between two solitons under time dependent perturbations in a trap potential and interparticule potential. In a dense Bose-Einstein condensate we studied the insertion of kinetic term going beyond the Thomas-Fermi approximation and its effect in critical frequency of vortices formation.
 
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Publishing Date
2008-05-09
 
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