Quantum codes from Hermitian dual-containing constacyclic codes over Fq2 + vFq2

Let R be the finite non-chain ring F-q2 + VFq2, where v(2) = v and q is an odd prime power. In this paper, we study quantum codes over F-q from constacyclic codes over R. We define a class of Gray maps, which preserves the Hermitian dual-containing property of linear codes from R to F-q2. We study alpha(1 - 2v)-constacyclic codes over R, and show that the images of alpha(1 - 2v)-constacyclic codes over R under the special Gray map are alpha(2)-constacyclic codes over Fe . Some new non-binary quantum codes are obtained via the Gray map and the Hermitian construction from Hermitian dualcontaining alpha(1 - 2v)-constacyclic codes over R.