Open AccessThe ground state solutions of two-component Bose-Einstein condensates in Bessel optical lattices
Author(s) -
Haijun Chen,
Ju-Kui Xue
Publication year - 2008
Publication title -
wuli xuebao
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.