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The Breakup of a Helium Cluster After Removing Attractive Interaction Among a Significant Number of Atoms in the Cluster.
Scientific Reports ( IF 3.8 ) Pub Date : 2020-04-01 , DOI: 10.1038/s41598-020-62732-2 Tao Pang 1
Scientific Reports ( IF 3.8 ) Pub Date : 2020-04-01 , DOI: 10.1038/s41598-020-62732-2 Tao Pang 1
Affiliation
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The breakup of a quantum liquid droplet is examined through a 4He cluster by removing the attractive tail in the interaction between some of the atoms in the system with the diffusion quantum Monte Carlo simulation. The ground-state energy, kinetic energy, cluster size, and density profile of the cluster are evaluated against the percentage of the atoms without the attractive tail. The condition for the cluster to lose its ability to form a quantum liquid droplet at zero temperature is found and analyzed. The cluster is no longer able to form a quantum liquid droplet when about two-thirds of pairs of attractive interaction are removed. The findings are helpful to the current studies on the formation of quantum liquid droplets from cold atoms.
中文翻译：
除去簇中大量原子之间有吸引力的相互作用后，氦簇的破裂。
通过使用扩散量子蒙特卡洛模拟去除系统中某些原子之间相互作用中的吸引尾巴，通过4He团簇检查量子液滴的破裂。针对没有吸引尾的原子百分比评估了基态能，动能，团簇尺寸和团簇的密度分布。找到并分析了使团簇失去在零温度下形成量子液滴的能力的条件。当除去约三分之二的吸引力相互作用对时，团簇不再能够形成量子液滴。这些发现有助于当前关于由冷原子形成量子液滴的研究。
更新日期：2020-04-01
中文翻译：
除去簇中大量原子之间有吸引力的相互作用后，氦簇的破裂。
通过使用扩散量子蒙特卡洛模拟去除系统中某些原子之间相互作用中的吸引尾巴，通过4He团簇检查量子液滴的破裂。针对没有吸引尾的原子百分比评估了基态能，动能，团簇尺寸和团簇的密度分布。找到并分析了使团簇失去在零温度下形成量子液滴的能力的条件。当除去约三分之二的吸引力相互作用对时，团簇不再能够形成量子液滴。这些发现有助于当前关于由冷原子形成量子液滴的研究。
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