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chiqiong

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lgxyz

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chiqiong(金币+1):谢谢参与
zzy870720z(金币+1):谢谢交流 2010-11-30 15:57:15
chiqiong(金币+1): 2010-11-30 15:59:43
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Originally posted by chiqiong at 2010-11-30 14:09:25:

这不只是精度的问题,因为能量就不在一个层次上!

两套赝势的能量没有可比性.
4楼2010-11-30 14:40:01
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夕阳西下

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chiqiong(金币+1):谢谢参与
chiqiong(金币+1): 2010-11-30 14:09:51
zzy870720z(金币+1):谢谢交流 2010-11-30 15:57:05
赝势的选取直接影响计算的精度。
2楼2010-11-30 13:56:43
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3楼2010-11-30 14:09:25
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chiqiong(金币+1):谢谢参与
chiqiong(金币+1): 2010-11-30 15:59:47
zzy870720z(金币+2):谢谢指教 2010-11-30 16:00:21
Generally the PAW potentials are more accurate than the ultra-soft pseudopotentials. There are two reasons for
this: first, the radial cutoffs (core radii) are smaller than the radii used for the US pseudopotentials, and second the
PAW potentials reconstruct the exact valence wave function with all nodes in the core region.
5楼2010-11-30 15:15:52
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