Quantum atom-heteronuclear molecule dark state: Role of population imbalance
Quantum atom-heteronuclear molecule dark state: Role of population imbalance
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DOI：
10.1103/physreva.82.025601
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发表时间：
2010-08
影响因子：
2.9
通讯作者：
H. Jing;S. Cui
中科院分区：
文献类型：
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作者：
H. Jing;S. Cui
最近，Zhao等人[Phys. Rev. Lett.]研究了相干原子-分子转换中初始原子的有限数效应。101，010401（2008）]。在这里，通过扩展到原子-异质结分子暗态，我们发现原子的初始布居不平衡对量子转换率和绝热保真度起着重要的作用。特别是，即使对于有限总数的不平衡的两种原子，平均场转换率，相反的一般信念，仍然可以非常接近精确的量子结果。
Recently, the finite-number effect of initial atoms in coherent atom-molecule conversion was investigated by Zhao et al. [Phys. Rev. Lett. 101, 010401 (2008)]. Here, by extending to the atom-heteronuclear molecule dark state, we find that the initial populations imbalance of the atoms plays a significant role in quantum conversion rate and adiabatic fidelity. In particular, even for the finite total number of imbalanced two-species atoms, the mean-field conversion rate, contrary to the general belief, still can be remarkably close to the exact quantum results.