2d hamiltonian in julia

Question

There is no example given in the ITensor Julia version for a sample code for a 2 dimensional hamiltonian. I want to find the 2D hamiltonian. What function for the Julia Version can be used to make a square lattice, similar to C++ ITensor version, whose example is also mentioned in the website.
https://itensor.org/docs.cgi?vers=cppv3&page=formulas/2d_dmrg

Answer 1

Hi,

We need to advertise it better on the website and documentation, but there is an "examples" directory on the Github page here: https://github.com/ITensor/ITensors.jl/tree/master/examples/dmrg

The notation is nearly the same as in C++.

-Matt

Comments

Thank you so much Matt, for your answer, I did check on github! great help !

Answer 2

Thanks for asking about this. I would definitely suggest looking at the codes in the examples folder in the ITensor source, as Matt recommends.

Also I just added a new "code formula" for 2D DMRG based on one of the example codes. You can view it here:
http://itensor.org/docs.cgi?vers=julia&page=formulas/2d_dmrg

Comments

Thanks a lot MIles, for adding the same for Julia version. !