Coding Analog of Superadditivity Using Entanglement-Assisted Quantum Tensor Product Codes Over Fpk

We provide a procedure to construct entanglement-assisted Calderbank–Shor–Steane (CSS) codes over qudits from the parity check matrices of two classical codes over Fq, where q = pk, p is prime, and k is a positive integer. The construction procedure involves the proposed Euclidean Gram–schmidt orthogonalization algorithm, followed by a procedure to extend the quantum operators to obtain stabilizers of […]

 

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