Bethe-Salpeter kernel in 2D: Difference between revisions

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(Created page with "Create the input yambo -F 03_bse_Ws_wcut.in -b -r -o b -k sex -V QP 03_bse_Ws_wcut.in Open it and change some of the input variables BSENGexx= 30 Ry # [BSK] Exchange...")
 
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If you have already generated a ndb.QP database you can read it  
If you have already generated a ndb.QP database you can read it  


KfnQPdb= " E < ./SAVE/ndb.QP "              # [EXTQP BSK BSS] Database
KfnQPdb= " E < ./SAVE/ndb.QP "              # [EXTQP BSK BSS] Database
 
or you can give the numerical value of the GW scissor and conduction and valence streaching.


or you can give the numerical value of the GW scissor and conduction and valence streaching .
For this material appropriate velues are:
For this material appropriate velues are:
% KfnQP_E
  % KfnQP_E
1.00000 | 1.000000 | 1.000000 |        # [EXTQP BSK BSS] E parameters  (c/v) eV|adim|adim
  1.00000 | 1.000000 | 1.000000 |        # [EXTQP BSK BSS] E parameters  (c/v) eV|adim|adim
  %

Latest revision as of 17:58, 16 June 2021

Create the input

yambo -F 03_bse_Ws_wcut.in -b -r -o b -k sex -V QP 03_bse_Ws_wcut.in

Open it and change some of the input variables

 BSENGexx=  30 Ry    # [BSK] Exchange components
 BSENGBlk=  2 Ry    # [BSK] Screened interaction block size

In the excitonic hamiltonian the GW energies are required. If you have already generated a ndb.QP database you can read it

KfnQPdb= " E < ./SAVE/ndb.QP "              # [EXTQP BSK BSS] Database

or you can give the numerical value of the GW scissor and conduction and valence streaching.

For this material appropriate velues are:

 % KfnQP_E
 1.00000 | 1.000000 | 1.000000 |        # [EXTQP BSK BSS] E parameters  (c/v) eV|adim|adim
 %