TeNPy Forum

Does that answer your question? I'll get back if it doesn't. While I'm at it, and since I side-mentioned it already in the original post, and since I hope there is no need to open a new thread on it: 1) I cannot find complete info on the parameter list 'delta_tau_list' . For me, the doc file https:...

I'm sorry, my question was probably stated misleadingly. Let me try differently. Say, I have set up a 'model' - not within tenpy - but certainly with various operators which are meant to act on an mps, encoded within a given local basis. One of the operators I have at hand is exp(-dt*H_bond) , where...

Say, I'd like to 'see' the matrix elements tenpy obtains for exp(-dt*H_bond) , in order to compare them with a side-calculation of the same matrix elements without tenpy. What I did was parm = {'L':2, '...model parms....': ...., 'bc_MPS': 'infinite'} w = MyMod(parm) # some model I have psi = MPS.fro...

Thx. a lot! Now I do have '...some...' class MyMod(CouplingModel, MPOModel) model, anticipated to describe my Eqn. (1). It seemed not to be that hard after all, following your suggestions. I essentially carried over the operators I had used to adapt the iTEBD example from Efficient Numerical Simulat...

...don't want to bother people around here 24/7 Ok. so I'm already back, violating my own commitments :(, but I got stuck on your examples for the XXZ and TFI chain in https://tenpy.github.io/intro_model.html. There you set the lattice like so: # 4) lattice bc = 'periodic' if bc_MPS == 'infinite' e...

Thank you for replying swiftly. I really don't want to bother people around here 24/7. So let me pls. ask just one more for starters: one of the reasons I got stuck on https://tenpy.github.io/intro_model.html was that both, right from the start with the local Hilbert spaces, as well as for the xxz's...