A finite number of trapped interacting bosons: an approximate many-body calculation
A finite number of trapped interacting bosons: an approximate many-body calculation
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有限数量的被捕获相互作用玻色子：近似多体计算
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
T. K. Das
中科院分区：
文献类型：
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作者：
B. Chakrabarti;A. Kundu;T. K. Das
我们考虑了有限数量的相互作用玻色子，并提出了一个近似的，但从头计算多体计算包括两体关联。所采用的近似是非常合理的实验实现玻色-爱因斯坦凝聚所需的实际条件。基态能量与扩散蒙特卡罗计算结果基本一致，这是一个基本上精确的计算。然而，我们的方法既简单又相对快速。
We consider a finite number of trapped interacting bosons and present an approximate but ab initio many-body calculation including two-body correlations. The adopted approximation is very well justified for the actual conditions necessary for achieving Bose–Einstein condensation experimentally. The ground state energy is in good agreement with the diffusion Monte Carlo calculation, which is an essentially exact calculation. However, our method is both simple and relatively fast.