[Pw_forum] about U

[wangqj1]

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发件人："wangqj1 <wangqj1 at 126.com>" 
发送日期：2009-07-22 12:42:56
收件人：pw_forum <pw_forum at pwscf.org>
主题： about U


Dear pwscf users
     I want to compute the value of U,in the paper PRB 71, 035105 (2005),the Eq.(18),(19),but I don't know how to construct the response matrices. matrices \chi and \chi_0,I want to construct the matrices manually instead of programe pack like the example. And how do I extract the the date from the out file of unperturbed self-consistent calculation and the files of perturbed calculations(like pert-0.1.out ,pert-0.2.out and so on ) to construct the matrices of \chi and \chi_0 as in Eq.(18) ?
Beat regards
Q J Wang
XiangTan University




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