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理论物理通讯：英文版

Quantum Correlation of Many Atoms in Spinor Bose-Einstein Condensates

Yu, Zhao-Xian, Liang Liang, Jiu-Qing, Jiao, Zhiyong

Published Jan 1, 2006• 0 citations
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Abstract

在这个字母，我们在旋量 Bose 爱因斯坦冷凝物学习了 sub-Poissonian 分布和原子的量关联。在那里存在，这被发现为 spin-1 和旋转的 thesub-Poissonian 分布 --(-1) 部件分别地。可以在那里存在 Cauchy-Schwartz 不平等的违背。为一样的原子序数，，包括 Cauchy-Schwartz 不平等的违背的区域将为一样的 Rabi 频率与 Rabifrequency 的增长转移向右，这些区域将与原子序数的增长转移 leftwards。

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在这个字母，我们在旋量 Bose 爱因斯坦冷凝物学习了 sub-Poissonian 分布和原子的量关联。在那里存在，这被发现为 spin-1 和旋转的 thesub-Poissonian 分布 --(-1) 部件分别地。可以在那里存在 Cauchy-Schwartz 不平等的违背。为一样的原子序数，，包括 Cauchy-Schwartz 不平等的违背的区域将为一样的 Rabi 频率与 Rabifrequency 的增长转移向右，这些区域将与原子序数的增长转移 leftwards。
In this letter, we have studied sub-Poissonian distributions and quantum correlation of atoms in spinor Bose–Einstein condensates. It is found that there exists the sub-Poissonian distributions for spin-1 and spin-(-1) components, respectively. There may exist the violation of the Cauchy–Schwartz inequality. For the same atomic numbers, the regions that include violation of the Cauchy–Schwartz inequality will shift rightwards with the increment of the Rabi frequency, whereas for the same Rabi frequency, the regions will shift leftwards with the increment of the atomic numbers.
我们学习了在纺纱之间的人口转移，通道水流和反 bunching 效果的进化 --(+1 ) 并且纺纱 --( 在强壮的激光的情况中的 -1) 搏动。Itis 发现人口转移和通道水流展出期刊摆动。为一样的 Rabi 频率，越大原子数字，摆动时期是越多 longer。为 thespin-(-1) 部件当原子序数是 N = 时 4 和 10，反 bunching 效果能出现。为不同原子序数，出现区域是很不同的。为旋转部件 +1， theantibunching 效果能总是为不同原子序数出现。
We have studied quantum statistical properties in a zero-temperature two-species Bose–Einstein condensate system in the presence of the nonlinear self-interaction of each species, the interspecies nonlinear interaction, and the Josephson-like tunneling interaction. It is found that the two condensates may periodically exhibit sub-Poissonian distribution. It is revealed that the correlation between the two condensates can be nonclassical, which means that there exists a violation of Cauchy–Schwartz inequality. The nonclassical effect about the correlation between the two condensates can be realized experimentally by properly preparing the total number of atoms in the two condensates.
在多维的光格子的 Bose 爱因斯坦冷凝物的高顺序的相互作用被讨论经分解并且数字地。健全速度和 Bloch 波浪的稳定性上的高顺序的原子相互作用的效果强烈取决于格子力量，这被表明。面对高顺序的效果，更紧密、高度维的格子被证实是为维持系统的精力充沛的稳定性的二个积极因素，并且 Bloch 的动态不稳定性飘动能与精力充沛的不稳定性同时发生。另外，我们发现高顺序的相互作用展出远程的行为，在一个倾斜的光格子的长寿协调 Bloch 摆动存在。我们的结果提供一个有效方法在光格子探查高顺序的相互作用。