The ground state solutions of two-component Bose-Einstein condensates in Bessel optical lattices | Zendy

Haijun Chen | Zendy; Xue Ju-Kui | Zendy

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The ground state solutions of two-component Bose-Einstein condensates in Bessel optical lattices

Author(s) -

Haijun Chen,

Xue Ju-Kui

Publication year - 2008

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.57.3962

Subject(s) - bessel function , physics , bose–einstein condensate , component (thermodynamics) , ground state , transverse plane , atom (system on chip) , plane (geometry) , quantum mechanics , state (computer science) , atomic physics , geometry , mathematics , structural engineering , computer science , engineering , embedded system , algorithm

The ground state solutions of two-component Bose-Einstein condensates (BECs) in Bessel optical lattices (BLs) are studied by means of the balance condition between BLs strength and inter-atomic interactions. We consider a quasi-two-dimensional (2D) BECs systemstrongly confined in longitudinal direction and weakly trapped in the radial direction in the transverse planewhich obeys 2D Gross-Pitaevskii equation (GPE) derived from its 3D counterpart. Analytically we obtained the atom number distributionatom number and energy of ground state and give the parameter ranges. Compared to single-component BECtwo-component BECs exhibit a rich variety of ground state structures. These structures depend upon various parametersin particular the inter-atomic interactions and the BLs strength. Neglecting the inter-component atomic interactionthe corresponding results of single-component situation are given.

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