Search found 32 matches
- 17 Jan 2019, 06:56
- Forum: HowTos and FAQ for TeNPy
- Topic: the truncation in dmrg
- Replies: 5
- Views: 5575
Re: the truncation in dmrg
Thanks for your reply, I know that the problem maybe the degeneracy of the ground state, but that's not my point. My point is, I thought only one of these parameters "svd_min", "trunc_err", "max_bond" for truncation works. I mean I thought there is a protocol to choose ...
- 08 Jan 2019, 03:36
- Forum: HowTos and FAQ for TeNPy
- Topic: the truncation in dmrg
- Replies: 5
- Views: 5575
the truncation in dmrg
I think the following finding should be noticed by everyone who uses tenpy. When I run dmrg for xxz chian, I found that the result will be strongly dependents on the parameter "svd_min", and this doesn't make sense. I have run the following test to show the problem. I'm confused, what may ...