2020/03/02 by Peng Hu, Hu, Peng, Xiusheng Liu +1
Computer Science · #Quantum Computing Algorithms and Architecture #Quantum-Dot Cellular Automata #Quantum Information and Cryptography
paper · pdf · doi:10.48550/arxiv.2003.00843
Entanglement-assisted quantum error-correcting (EAQEC) codes make use of preexisting entanglement between the sender and receiver to boost the rate of transmission. It is possible to construct an EAQEC code from any classical linear code, unlike standard quantum error-correcting codes, which can only be constructed from dual-containing codes. However, the number c of pre-shared maximally entangled states is usually calculated by computer search. In this paper, we first give a new formula for calculating the number c of pre-shared maximally entangled states. Then, using this formula, we construct three classes of new entanglement-assisted quantum error-correcting maximum-distance-separable ( EAQEC MDS) codes.