Hi everyone,

I actually have a follow-up question about this:

https://itensor.org/support/1920/valence-bond-states-fast-implementation

So I have created a state like this. It is basically a product of 2-site states, which can either be nearest neighbors or arbitrary sites i,j (for arbitrary sites I need to change the site indices after I generate a nearest-neighbor product state, we discussed that in the previous thread).

My question is, after I have created an MPS state that represents the equation above, how can I change the coefficients u and d, without needing to generate the state from scratch? Is there a way?

Thank you very much in advance.