Search found 5 matches
- 12 Jul 2024, 14:47
- Forum: Implementations
- Topic: iDMRG Convergence Issues
- Replies: 1
- Views: 68365
Re: iDMRG Convergence Issues
Maybe this is already quite late but are you able to obtain the ground state using iDMRG in canonical form? I expect that iDMRG cannot just converge at the critical point since it corresponds to a gapless state and thus cannot be expressed by an iMPS of finite dimension. I think that you are able to...
- 12 Jul 2024, 14:42
- Forum: Implementations
- Topic: MPS.apply_local_op returns none
- Replies: 0
- Views: 1916
MPS.apply_local_op returns none
I am studying a problem where I have a three site unit cell consisting of two fermion sites and one bosonic site. I am interested in calculating the eigenvalues of the generalised transfer matrix to check whether the obtained ground state (using iDMRG) is symmetric under a given symmetry and to even...
- 12 Jul 2024, 14:13
- Forum: Implementations
- Topic: Error bar in the calculated entanglement spectrum
- Replies: 2
- Views: 24189
Re: Error bar in the calculated entanglement spectrum
Thanks a lot for your reply.
I took into account the lower part of the entanglement spectrum and obtained convincing results
I took into account the lower part of the entanglement spectrum and obtained convincing results
- 15 Mar 2024, 16:22
- Forum: HowTos and FAQ for TeNPy
- Topic: Correlators using iDMRG
- Replies: 1
- Views: 12788
Correlators using iDMRG
I am studying a model with iDMRG and was wondering if I can extract correlation functions using iDMRG? I am interested in studying the possibility of a superconducting phase by studying the correlators. My initial lattice size is 2 (before iDMRG run). Also, is it possible to extract central charge u...
- 04 Mar 2024, 15:46
- Forum: Implementations
- Topic: Error bar in the calculated entanglement spectrum
- Replies: 2
- Views: 24189
Error bar in the calculated entanglement spectrum
Hi, I am using iDMRG to calculate the entanglement spectrum of my model. Our model consists of three site unit cells with two sites being spin-half fermionic and one bosonic. My aim is to find the degeneracies in the entanglement spectrum to confirm our analytical calculation of the existence of an ...