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请问哈密顿量J前面的系数问题 #9

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boyguyue opened this issue Jul 19, 2021 · 2 comments
Open

请问哈密顿量J前面的系数问题 #9

boyguyue opened this issue Jul 19, 2021 · 2 comments

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@boyguyue
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boyguyue commented Jul 19, 2021

刘老师您好!
关于哈密顿量,我看程序的可视化界面上写的是H=∑JSmSn,而文章(doi:10.1021/acs.jpclett.0c01911)中则写的是H=-(1/2)∑JSiSj。
后者文章中式子所得的J,已经考虑到了求和过程中相互作用被重复计算的问题。那么程序的输入文件是直接使用这个J,还是要乘以1/2再作为参数输入呢?

@golddoushi
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您好!
程序内建立哈密顿量时会自动识别并忽略重复的相互作用,所以不需要乘以1/2。

@boyguyue
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好的,多谢刘老师!以及如果引用文章的话,引Applied Surface Science 480(2019),还是这篇JPCL呢?

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