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Phys. Rev. A 68, 013605 (2003) [5 pages]

Intrinsic localized modes in arrays of atomic-molecular Bose-Einstein condensates

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F. Kh. Abdullaev1 * and V. V. Konotop2 †
1Physical-Technical Institute of the Uzbek Academy of Sciences, 2-b, Mavlyanov str., 700084, Tashkent, Uzbekistan
2Departamento de Física and Centro de Física de Matéria Condensada, Universidade de Lisboa, Complexo Interdisciplinar, Av. Prof. Gama Pinto 2, Lisbon 1649-003, Portugal

Received 30 October 2002; published 15 July 2003

The existence of strongly localized matter solitons, intrinsic localized modes (ILM’s), in an array of atomic-molecular Bose-Einstein condensates (AMBEC’s) is shown. The theory is based on the Wannier function expansion of the system order parameter and predicts the possibility of strong localization of the atomic and molecular components whose relative populations are determined by the Raman detuning parameter and by the atom-molecule conversion rate. ILM’s can possess different symmetries and spatial distributions of the components. In this context AMBEC arrays can be viewed as potential compressors and separators of atomic and molecular condensates.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.68.013605
DOI: 10.1103/PhysRevA.68.013605
PACS: 03.75.Hh, 03.65.Ge, 05.30.Jp, 33.80.Ps

* Electronic address: fatkh@physic.uzsci.net
† Electronic address: konotop@cii.fc.ul.pt

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