maartenvd

That is sad, is there a maintained alternative? I tried cassette but run into the llvmcall issue, cassetteoverlay runs into different issues still. At some point there ways mixtape, but...

There's another issue which I'd like to debug, but I'm not too familiar with this ssa! stuff in irtools... ``` met = IRTools.meta(Tuple{typeof(Base.Partr.multiq_size), Int8}) ir = IRTools.IR(met) ```

In general I would caution against using @tensor with fermionic symmetries. If you keep it planar, you will have to be more verbose in writing down the tensor contraction but...

Creating the correct operators is by far the most cumbersome part of using tensorkit (and by extension mpskit), I can definitely sympathize! I have limited information about your particular usecase,...

@Jason-zo actually come to think of it, you may be running into a confusion I also had when implementing the quantum chemistry hamiltonian. The contraction we are doing here is...

No problem! This is honestly a really tricky part of our code stack... But I don't know of a cleaner alternative that doesn't end up producing even more unexpected result...