solve eliashberg equations using specific spectral function

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xz82125598
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solve eliashberg equations using specific spectral function

Post by xz82125598 »

I would like to solve isotropic Eliashberg equations to get energy gaps using some specific Eliashberg spectral function a2f. I don't need to calculate phonon spectrum. Are there any easy way to implement it? If there is, how to set up?

Thanks a lot.

roxana
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Joined: Fri Jan 22, 2016 6:48 pm
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Re: solve eliashberg equations using specific spectral funct

Post by roxana »

Hi,

This is already implemented in the code. You can take a look at the epw_iso.in and epw_iso_real.in in qe-6.1/EPW/tests/Inputs/t05

Best,
Roxana
Roxana Margine
Associate Professor
Department of Physics, Applied Physics and Astronomy
Binghamton University, State University of New York

xz82125598
Posts: 5
Joined: Wed Apr 19, 2017 7:27 pm
Affiliation:

Re: solve eliashberg equations using specific spectral funct

Post by xz82125598 »

roxana wrote:Hi,

This is already implemented in the code. You can take a look at the epw_iso.in and epw_iso_real.in in qe-6.1/EPW/tests/Inputs/t05

Best,
Roxana


Dear Roxana,

Would you please be more specific on how to do this? Like where should the spectral function go? How to change epw_iso.in?
Thanks very much.

Best,
Zhen

roxana
Posts: 172
Joined: Fri Jan 22, 2016 6:48 pm
Affiliation:

Re: solve eliashberg equations using specific spectral funct

Post by roxana »

Hi,

If you already have the Eliashberg spectral function you can use liso together with fial2f variable (their description can be found athttp://epw.org.uk/Documentation/Inputs).

You can make the following changes in the epw_iso.in

ep_coupling = .false.
ephwrite = .false.
fial2f = 'file for eliashberg spectral function'

Roxana
Roxana Margine
Associate Professor
Department of Physics, Applied Physics and Astronomy
Binghamton University, State University of New York

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