Let q be a prime power and \(m\ge 2\) an integer. In this paper, based on classical \(q^{2}\)-ary constacyclic codes, we apply the Hermitian construction to obtain several classes of q-ary quantum stabilizer codes of length \((q^{2m}-1)/(q+1)\). These quantum codes have parameters better than those obtained from classical BCH codes.
['Jian Yuan', 'Shixin Zhu', 'Xiaoshan Kai', 'Ping Li']
On the construction of quantum constacyclic codes