Mixed state discrimination

[AzizNgoueya]

Description

Extend the current discriminator functionality to allow for mixed state outputs. Instead of a discriminator that always outputs 0 or 1, it may be useful for it to output a mixed state for states it's not confident on. A simple implementation could be a discriminator that draws bounds of a certain radius around the centroids for 0 and 1, then classifies all points outside of those bounds as 50% |0>, 50% |1> .
You may need to update other parts of Ignis as well to accept this mixed state.

Mentor/s

@coruscating

participant

@AzizNgoueya

Deliverable

A pull request for code that extends the discriminator to allow for mixed state outputs.