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|Type:||Artigo de periódico|
|Title:||Generalized purity and quantum phase transition for Bose-Einstein condensates in a symmetric double well|
de Oliveira, MC
|Abstract:||The generalized purity is employed for investigating the process of coherence loss and delocalization of the Q function in the Bloch sphere of a two-mode Bose-Einstein condensate in a symmetrical double well with cross collision. Quantum phase transition of the model is signaled by the generalized purity as a function of an appropriate parameter of the Hamiltonian and the number of particles (N). A power-law dependence of the critical parameter with N is derived.|
|Editor:||Amer Physical Soc|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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