In cases where it is not clear what the index site ordering is, it would be good to have an interface for runcircuit/buildcircuit that accepts a vector of indices, for example:
ψ0 = qubits(N)
s = siteinds(ψ0)
ψ0 = MPS([ψ0[i] * ψ0[i+1] for i in 1:2:length(ψ0)])
ψ = runcircuit(ψ0, gates; siteinds = s)
In this case where MPS tensors get grouped together, internally it would be difficult to construct the gates since the site index ordering is not obvious (i.e. which site index on the first tensor is site 1 or 2 as specified in the gate list).
In cases where it is not clear what the index site ordering is, it would be good to have an interface for
runcircuit/buildcircuitthat accepts a vector of indices, for example:In this case where MPS tensors get grouped together, internally it would be difficult to construct the gates since the site index ordering is not obvious (i.e. which site index on the first tensor is site
1or2as specified in the gate list).