This replaces the functions trivialstate/trivialprocess with productstate/productoperator, and additionally removes the mixed = true case in the favor of converting to an MPO with MPO(productstate(s)).
Right now, trivialstate makes a state without link indices, for no particular reason other than that I was interested to see if it worked and because it makes the code a bit simpler. This exposed some bugs in ITensors/NDTensors, so I'm working through those right now.
Left to do:
[x] Fix some test errors in fidelity (probably related to updating the MPO(::MPS) function).
This replaces the functions
trivialstate/trivialprocesswithproductstate/productoperator, and additionally removes themixed = truecase in the favor of converting to an MPO withMPO(productstate(s)).Right now,
trivialstatemakes a state without link indices, for no particular reason other than that I was interested to see if it worked and because it makes the code a bit simpler. This exposed some bugs in ITensors/NDTensors, so I'm working through those right now.Left to do:
MPO(::MPS)function).choifidelityin favor offidelity.