DMRG with fixed bond dimension
Posted: 06 Jan 2021, 04:51
Hello,
I was wondering if there is an easy way to force the bond dimensions of a finite MPS (obtained via DMRG) to always be maximal up to some chi_max, e.g.:
chi = [2, 4, 8, 16, 32, 40, 40, …, 40, 40, 32, 16, 8, 4, 2] for spin-1/2 and chi_max = 40.
I played around with chi_min, but it doesn’t seem to do what I want.
Thank you!
Rike
I was wondering if there is an easy way to force the bond dimensions of a finite MPS (obtained via DMRG) to always be maximal up to some chi_max, e.g.:
chi = [2, 4, 8, 16, 32, 40, 40, …, 40, 40, 32, 16, 8, 4, 2] for spin-1/2 and chi_max = 40.
I played around with chi_min, but it doesn’t seem to do what I want.
Thank you!
Rike