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by glazedonuts
15 Mar 2025, 20:52
Forum: HowTos and FAQ for TeNPy
Topic: Converting to state vector gives wrong energy
Replies: 2
Views: 22371

Converting to state vector gives wrong energy

Hi, I am new to TenPy so need a bit of help. I am running DMRG on a TFIM and when I get the final energy it is -10.5. I also obtained the exact energy by exact diagonalization (since I have a small system size) and that is also very close to the DMRG energy. All good. However, when I try to extract ...