TeNPy Forum

I am happy to see my calculations converge when I set Lx to 3. Of course, it makes every sweep takes longer time. Moreover, I may need to make a prior guess about the system size required for the calculation.

At least I can do calculations now. Thank you very much!!

Hello, I am a beginner in DMRG, and I have several confused questions. In short, the main problem is that the iDMRG calculations cannot converge in 2D triangular lattice XXZ model. When J_z is very large in two site iDMRG, the energy jumps within a small range, and sometimes it breaks the lowest val...