Probabilistic quantum error correction (pQEC) is an error-correcting
procedure which uses postselection to determine if the encoded information was
successfully restored. In this talk, I will show an application of pQEC for various
types of noise channels, e.g. Schur channels, channels with bounded Choi rank and
random channels. I will present how to correct errors caused by an arbitrary unitary
interaction with an auxiliary qubit system. Finally, I will discuss the optimization
problem related with pQEC procedure.