Аннотация:
Modern quantum computers suffer from noises, that is why a lot of effort
is put in the theory of quantum error-correcting codes. Protocols of
quantum fault-tolerance widely use a subclass of quantum computational
processes called stabilizer circuits. Stabilizer circuits are most prone
to error correction, they are capable of generating quantum
entanglement, but they are also classically simulable.
The general theory of stabilizer circuits and their classical
simulation, in addition to practical significance to error-correction,
turns out to have close connection with wide range of topics, such as:
Boolean circuits, Boolean linear algebra, projective representations of
abelian groups and their cohomology, linear optics, and theories of
reference frames and hidden variable models from quantum foundations.
In my talk, which is based on https://arxiv.org/abs/2511.05478, I will
try to give an introduction to the subject and state some of my recent
results.