Integral equation for inhomogeneous condensed bosons generalizing the Gross-Pitaevskii differential equation

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We give here the derivation of a Gross-Pitaevskii--type equation for inhomogeneous condensed bosons. Instead of the original Gross-Pitaevskii differential equation, we obtain an integral equation that implies less restrictive assumptions than are made in the very recent study of Pieri and Strinati [Phys. Rev. Lett. 91 (2003) 030401]. In particular, the Thomas-Fermi approximation and the restriction to small spatial variations of the order parameter invoked in their study are avoided.
Phys. Rev. A (accepted)

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Soft Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/23562

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0403514
 http://arxiv.org/abs/cond-mat/0403514
 Phys. Rev. A 69 (2004) 055601
 doi:10.1103/PhysRevA.69.055601

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arXiv