Effects of atom-atom interaction on localization and adiabaticity of BEC in one-dimensional disorder optical lattice

Zhen Xu; Ya Fan Duan; Shu Yu Zhou; Tao Hong; Yu Zhu Wang

doi:10.1088/0256-307X/26/9/090303

Effects of atom-atom interaction on localization and adiabaticity of BEC in one-dimensional disorder optical lattice

Zhen Xu, Ya Fan Duan, Shu Yu Zhou, Tao Hong, Yu Zhu Wang

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4 Scopus citations

Abstract

We numerically simulate the dynamical behavior of BEC in one-dimensional incommensurable optical lattice by split-step Fourier method in a time-dependent one-dimensional Gross - Pitaevskii equation. It is indicated that the atom-atom interaction will weaken the localization and broaden the wave function, and it will destroy the adiabaticity of the ramped loading process in both single lattice and incommensurate lattice due to the broadening effect. A band structure model can interpret the difference of the adiabatic condition with non-interacting BEC in these optical lattices.

Original language	English
Article number	090303
Journal	Chinese Physics Letters
Volume	26
Issue number	9
DOIs	https://doi.org/10.1088/0256-307X/26/9/090303
State	Published - 1 Jan 2009
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/0256-307X/26/9/090303

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abstract = "We numerically simulate the dynamical behavior of BEC in one-dimensional incommensurable optical lattice by split-step Fourier method in a time-dependent one-dimensional Gross - Pitaevskii equation. It is indicated that the atom-atom interaction will weaken the localization and broaden the wave function, and it will destroy the adiabaticity of the ramped loading process in both single lattice and incommensurate lattice due to the broadening effect. A band structure model can interpret the difference of the adiabatic condition with non-interacting BEC in these optical lattices.",

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T1 - Effects of atom-atom interaction on localization and adiabaticity of BEC in one-dimensional disorder optical lattice

AU - Xu, Zhen

AU - Duan, Ya Fan

AU - Zhou, Shu Yu

AU - Hong, Tao

AU - Wang, Yu Zhu

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We numerically simulate the dynamical behavior of BEC in one-dimensional incommensurable optical lattice by split-step Fourier method in a time-dependent one-dimensional Gross - Pitaevskii equation. It is indicated that the atom-atom interaction will weaken the localization and broaden the wave function, and it will destroy the adiabaticity of the ramped loading process in both single lattice and incommensurate lattice due to the broadening effect. A band structure model can interpret the difference of the adiabatic condition with non-interacting BEC in these optical lattices.

AB - We numerically simulate the dynamical behavior of BEC in one-dimensional incommensurable optical lattice by split-step Fourier method in a time-dependent one-dimensional Gross - Pitaevskii equation. It is indicated that the atom-atom interaction will weaken the localization and broaden the wave function, and it will destroy the adiabaticity of the ramped loading process in both single lattice and incommensurate lattice due to the broadening effect. A band structure model can interpret the difference of the adiabatic condition with non-interacting BEC in these optical lattices.

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U2 - 10.1088/0256-307X/26/9/090303

DO - 10.1088/0256-307X/26/9/090303

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VL - 26

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 9

M1 - 090303

ER -

Effects of atom-atom interaction on localization and adiabaticity of BEC in one-dimensional disorder optical lattice

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