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rfasr / asr / chneut confusion: non-analyticity at gamma


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  • From: Kris Andersen <Kris.Andersen@nau.edu>
  • To: forum@abinit.org
  • Subject: rfasr / asr / chneut confusion: non-analyticity at gamma
  • Date: Sat, 15 Sep 2007 22:41:37 -0700

I have some questions concerning the input variables into abinit and anaddb:

1. It seems that rfasr in abinit and chneut for anaddb do the same thing? From the names, one might guess that rfasr/abinit and asr/ anaddb are equivalent, but as far as I can tell, there is no equivalent asr/anaddb variable in abinit proper?

It seems that asr/anaddb is what I'm looking for, to force the acoustic modes to be zero. But I still want to look at the non- analyticity at gamma. It doesn't seem that anaddb outputs this information, which leads me to ask,

2. Is there a way to look at the non-analyticity at gamma with anaddb? or a way to do the equivalent of asr/anaddb directly in abinit?


Thanks for any and all help!

--
Kristopher E. Andersen http://www.physics.nau.edu/~andersen/
Northern Arizona University kris.andersen@nau.edu
Department of Physics and Astronomy (928) 523-7202




  • rfasr / asr / chneut confusion: non-analyticity at gamma, Kris Andersen, 09/16/2007

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