Stefan Woerner

The problem is that due to sampling noise (you are using `qasm_simulator`) the estimated kernel matrix might not be positive semi definite. In this case the used solver cannot handle...

It might be due to noise. You could validate your results using simulation (statevector and qasm) and maybe increase the number of shots used?

@Zoufalc could you please look into this problem?

Thanks @t-imamichi! This is a heuristic, so that's a behavior that can happen. Indeed, if the correlation turns out to be rather small (below some threshold) we could consider alternative...

> > > Please add Maximilian Moll and Leonhard Kunczik as members to the team. done.

added all of you, group is full now.