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Dear there,
I want to use dmrg to solve a Hamiltonian which has couplied spin 1/2 operator and electron operator on same site.
For example: H= a \sum{n} {Sx(n)C^dagup(n)Cup(n)} + b\sum{n} {Sz(n)}.

After some searching, I found I need use MixedSiteSet. But so far, I only find a previous example for a Holstein-type new site set , which is:
using Holstein = MixedSiteSet(ElectronSite,BosonSite);

And I saw in that answer, it mentions "the odd numbered sites will be electron sites and the even numbered sites will be boson sites". But in my case, I need electron and spin on same site. I'm not sure if this kind of MixedSiteSet already exits in Itensor or how could I construct this?

Thank you so much!!

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