What types of noises can I include in the circuits?

I saw that with the Stepper Back-end, photon loss can be included but I
did not understand how. And are there plans to include other noise

Hello @Pedro_Mendes ! currently - you can model noise in the source through the Processor class, allowing in particular to introduce discernable photons. We are working on modeling of photon loss in the Stepper, and sometime this summer will also introduce new detector class for modeling noise at the detection level.

Thanks for using Perceval !