Search found 7 matches
- 01 Oct 2019, 08:43
- Forum: HowTos and FAQ for TeNPy
- Topic: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
- Replies: 6
- Views: 8267
Re: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
Hi Leon, I had tried single site DMRG. It is faster than two site DMRG. Because, my convergence problem is because of gapless ground state, so it can not help me. Thanks for your suggestions. I checked the single site and double site DMRG both gives the same results. But single site DMRG is much fas...
- 14 Sep 2019, 09:29
- Forum: HowTos and FAQ for TeNPy
- Topic: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
- Replies: 6
- Views: 8267
Re: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
Hi Johannes,
Thank you so much for your reply. Your answers clarified many things.
I will ask you again, If I get into any problem.
Thanks a lot again.
Thank you so much for your reply. Your answers clarified many things.
I will ask you again, If I get into any problem.
Thanks a lot again.
- 07 Sep 2019, 17:16
- Forum: HowTos and FAQ for TeNPy
- Topic: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
- Replies: 6
- Views: 8267
Re: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
I investigated more and found that the fluctuation of energy and entropy values after 10 sweeps(I fixed it) is changing for a certain parameter region of complex hopping amplitude above a critical value. But the code still works for complex hopping in parameter region less than a critical value, so ...
- 06 Sep 2019, 09:50
- Forum: HowTos and FAQ for TeNPy
- Topic: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
- Replies: 6
- Views: 8267
Re: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
Sorry, I realized that WAY-II is wrong. The net imaginary hopping in WAY-II is zero. That is why I got same results for D=0 and D=finite. But, please suggest me, why WAY-I is giving fluctuating results after each sweep. One of my guess is given in the 2nd point in the NOTE, what I have mentioned. Th...
- 06 Sep 2019, 04:52
- Forum: HowTos and FAQ for TeNPy
- Topic: iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
- Replies: 6
- Views: 8267
iDMRG is not working properly with next-nearest neighbor complex hopping in the Haldane model
Hi everyone, I am trying to simulate a hard-bosonic Haldane model in the honeycomb lattice. The model is defined at Eq-2 of paper, 1603.04827 . I have created the nearest neighbor bonds and next-nearest neighbor bonds as in the following way in a "Lattice"-class, NN = [(0, 1, np.array([0, ...
- 26 Feb 2019, 11:36
- Forum: HowTos and FAQ for TeNPy
- Topic: Error drawing Lattice in Tenpy
- Replies: 2
- Views: 3078
Re: Error drawing Lattice in Tenpy
Thanks a lot for ur help.
- 24 Feb 2019, 05:35
- Forum: HowTos and FAQ for TeNPy
- Topic: Error drawing Lattice in Tenpy
- Replies: 2
- Views: 3078
Error drawing Lattice in Tenpy
I was experimenting to construct lattices using Tenpy and I found two errors, 1) ERROR IN FIGURE FOR SPECIFIC "PRIORITY" AND "SNAKE_WINDING": I made my own ordering function in Honeycomb lattice as: elif order=="user_order": priority=(1,2,0) snake_winding=(True,False,Fa...