Macroscopic quantum tunneling of two-component Bose-Einstein condensates

被引：0
|
作者：
Kasamatsu, K. [1 ]
Yasui, Y. [1 ]
Tsubota, M. [1 ]
机构：
[1] Department of Physics, Osaka City University, Sumiyoshi-Ku, Osaka 558-8585, Japan
来源：
Physical Review A. Atomic, Molecular, and Optical Physics | 2001年 / 64卷 / 05期
关键词：
Approximation theory - Eigenvalues and eigenfunctions - Ground state - Kinetic energy - Magnetooptical effects - Numerical analysis - Sodium - Thermal effects - Variational techniques;
D O I：
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学科分类号：
摘要：
The macroscopic quantum tunneling of metastable two-component Bose Einstein condensates in a trapping potential was studied. The tunneling decay rate and height of the energy barrier were calculated and thermal effects on the decay rate were analyzed. Results predicted the existence of metastable states whose configuration depended on interspecies interaction and particle numbers. Quantum tunneling was observable in a wide range of particle numbers. Macroscopic quantum coherence between two distinct states was found to give an additional coherent property of two-component Bose condensed systems.
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页码：536051 / 536051
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