Quantum codes from codes over the ring F-q + alpha F-q

GÜZELTEPE M., SARI M.

QUANTUM INFORMATION PROCESSING, cilt.18, sa.12, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 12
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/s11128-019-2476-2
  • Dergi Adı: QUANTUM INFORMATION PROCESSING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Quantum codes, Cyclic codes, Gray map, ERROR-CORRECTION
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

In this paper, we aim to obtain quantum error correcting codes from codes over a non-local ring R-q = F-q + alpha F-q. We first define a Gray map phi from R-q(n) to F-q(2n) preserving the Hermitian orthogonality in R-q(n) to both the Euclidean and trace-symplectic orthogonality in F-q(2n). We characterize the structure of cyclic codes and their duals over R-q and derive the condition of existence for cyclic codes containing their duals over R-q. By making use of the Gray map phi, we obtain two classes of q-ary quantum codes. We also determine the structure of additive cyclic codes over R-p2 and give a condition for these codes to be self-orthogonal with respect to Hermitian inner product. By defining and making use of a new map delta, we construct a family of p-ary quantum codes.