Stationary solutions of Gross-Pitaevskii equations in a double square well
Journal Article
·
· Physical Review. A
- Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006 (China) and INFM-BEC and Dipartimento di Fisica, Universita di Trento, 1-38050 Povo (Italy)
We present analytical stationary solutions for the Gross-Pitaevskii equation (GPE) of a Bose-Einstein condensate (BECs) trapped in a double-well potential. These solutions are compared to those described by [Mahmud et al., Phys. Rev. A 66, 063607 (2002)]. In particular, we provide further evidence that symmetry preserving stationary solutions can be reduced to the eigenstates of the corresponding linear Schroedinger equation. Moreover, we have found that the symmetry-breaking solutions can emerge not only from bifurcations, but also from isolated points in the chemical potential-nonlinear interaction diagram. We also have found that there are some moving nodes in the symmetry-breaking solutions.
- OSTI ID:
- 20976526
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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