For a 12 site chain, I tried to multiply
model.lat.unit_cell = model.lat.unit_cell*12and assign different values of
t(i) (i = 1, 12) to each of the element of unit cell. But that is not matching with exact diagonalization results.How to assign different hopping parameter 't' to different sites
How to assign different hopping parameter 't' to different sites
How do I assign different values hopping parameter 't' for different sites for fermionic hubbard model.
For a 12 site chain, I tried to multiply
and assign different values of
For a 12 site chain, I tried to multiply
and assign different values of
Re: How to assign different hopping parameter 't' to different sites
You don't need to modify the
Instead, you can give a hopping parameter
Take a look at the strength parameter and examples of add_coupling.
We've discussed the correct strength in viewtopic.php?f=7&t=6
unit_cell, if the kind of sites (Fermions with or without spin, Bosons, spins,...) doesn't change.Instead, you can give a hopping parameter
t which is not just a single number, but an array, specifying at which site you want hopping with which strength.Take a look at the strength parameter and examples of add_coupling.
We've discussed the correct strength in viewtopic.php?f=7&t=6