[Pw_forum] awin in average.x

Hande Ustunel hande at newton.physics.metu.edu.tr
Sat Aug 23 11:13:26 CEST 2008

Dear penghua,

awin is the width of the window(=interval) around each point over which you
average the planar average to get the macroscopic average. That is to say,
it should correspond to something like, in Latex-ish math,

    f_{mav}(x)=\int_{-awin/2}^{awin/2} f_{pav}(x-x') dx'

where f is your quantity of choice (density, potential etc).

Hope this helps.

On Sat, 23 Aug 2008, penghua wrote:

>  Hello everyone,
>    I used averge.x to calculate the planer planar average (pav) and macroscopic average (mav) of the resulting quantity of a supercell, but I didn¡¯t understand the meaning of the 'awin' in the input file. What is the use of it? Besides when I changed the value of awin, I got different mav curve, so how should I set the value of awin.
> Any help will be appreciated. 
> penghua
> shandong university
> penghua8503 at 163.com

Hande Toffoli
Department of Physics
Office 439
Middle East Technical University
Ankara 06531, Turkey
Tel : +90 312 210 3264

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