LHerviou

Slow down due to translatecell

3

During the creation of MPOMatrices, I experienced some significant slowdown, in particular when not using the base translate function (though not only) because accessing a tensor in fact often creates...

Add site-dependent QNs numbers

7

The final step I need for my FQHE code is to implement site-dependent QNs. I managed to make it work with a little bit of dirty code on ITensors for...

InfiniteITensorSum and MPO representations of local Hamiltonians

3

For the case I am interested in (FQHE-like Hamiltonians), the local Hamiltonian can be very long range (approximately 15-20 sites would be good to reach). Writing the full local Hamiltonian...

GradientGrassmann stuck in a (quasi-) infinite loop

6

During groundstate simulations for MPS close to exact analytical state (e.g. SU(2)), the GradientGrassmann can hang in the linesearch function of OptimKit.jl This is due to the maxiter taking its...