TeNPy Forum

BTW, I found some insight from DHIMAN002's post: https://tenpy.johannes-hauschild.de/viewtopic.php?p=281&hilit=haldane#p281 . In his post, Johannes replied that it may be the case that we need a large uMPS unit cell including several legs of the lattice. I have run the finite DMRG with L_y=3 and...

I give the Two site iDMRG such parameter dictionary: dmrg_params = {'mixer': True, 'mixer_params': { 'amplitude': 5.e-5, 'decay': 1.1, 'disable_after': 100 }, 'trunc_params': { 'svd_min': 1.e-10, }, 'max_E_err': 1.e-10, 'max_S_err': 1.e-8, 'min_sweeps': 10, 'max_sweeps': 2000, 'lanczos_params':{ 're...

Hi everyone, I am trying to reproduce the result, especially the charge pumping result of 1407.6985 . I directly use the module tenpy.models.haldane.FermionicHaldaneModel since it's just the Hamiltonian eq(1) in 1407.6985 . To be concrete, let me show you the Hamiltonian: H = -t_1\sum_{<ij>}c_i^\dag...