New quantum codes from constacyclic codes over finite chain rings

Yongsheng Tang, Ting Yao, Heqian Xu +1

Let $R$ be the finite chain ring ${\mathbb{F}}_{p^{2m}}+u{\mathbb{F}}_{p^{2m}}$, where ${\mathbb{F}}_{p^{2m}}$ is the finite field with $p^{2m}$ elements, $p$ is a prime, $m$ is a non-…