Alladi Ramakrishnan Hall

CSS codes and dualities via cluster state measurements

Aswin Parayil Mana

tony Brook University

The Calderbank-Shor-Steane (CSS) code is a class of quantum error
correction codes that contains the toric code and fracton models. By using
chain complex as an efficient tool to describe CSS codes, we develop a
procedure to obtain dualities from them. We study the measurement-assisted
gauging method with cluster-state entanglers for CSS/fracton models,
extending results in the literature, and demonstrate non-invertible fusion
of duality operators. This method allows us to generalize the notion of
strange correlators to general CSS codes.