4.3.2. CHECK_InterAll.dat

This file is outputted to check the input of the diagonal components of general two-body interactions,

(4.21)\[\sum_{i,j, \sigma_1, \sigma_2} I_{iijj\sigma_1\sigma_1\sigma_2\sigma_2} c_{i\sigma_1}^{\dagger}c_{i\sigma_1}c_{i\sigma_2}^{\dagger}c_{i\sigma_2}.\]

An example of the file format is as follows.

i=0 isite1=1 A_spin=0 isite2=2 B_spin=0 tmp_V=0.500000
i=1 isite1=1 A_spin=0 isite2=2 B_spin=1 tmp_V=-0.500000
i=2 isite1=1 A_spin=1 isite2=2 B_spin=0 tmp_V=-0.500000
i=3 isite1=1 A_spin=1 isite2=2 B_spin=1 tmp_V=0.500000
i=4 isite1=2 A_spin=0 isite2=3 B_spin=0 tmp_V=0.500000
i=5 isite1=2 A_spin=0 isite2=3 B_spin=1 tmp_V=-0.500000
...

File format

• i=[int01] isite1=[int02] A_spin=[int03] isite2=[int04] B_spin=[int05] tmp_V=[double01]

Parameters

• [int01]

  Type : Int

  Description : The counted number of inputting terms.

• [int02], [int04]

  Type : Int

  Description : An integer for showing the site index of \(I_{iijj\sigma_1\sigma_1\sigma_2\sigma_2}\).

  [int02] and [int04] correspond to \(i\) and \(j\), respectively.

• [int03], [int05]

  Type : Int

  Description : An integer for showing the spin index of \(I_{iijj\sigma_1\sigma_1\sigma_2\sigma_2}\):

  0: Up-spin

  1: Down-spin.

  [int03] and [int05] correspond to \(\sigma_1\) and \(\sigma_2\), respectively.

• [double01]

  Type : Double

  Description : A value for \(I_{iijj\sigma_1\sigma_1\sigma_2\sigma_2}\).