Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 10308-010308.doi: 10.1088/1674-1056/22/1/010308
詹云, 陈小余
Zhan Yun (詹云), Chen Xiao-Yu (陈小余)
摘要: We study the performances of quantum channel adaptive [4,1] code transmitting in a joint amplitude damping and dephasing channel, the [6,2] code transmitting in an amplitude damping channel by combining the encoding, noise process, and decoding as one effective channel. We explicitly obtain the entanglement fidelities. The recovery operators of the [6,2] code are given. The performance is nearly optimal comparing with that of the optimal method of semidefinite programming.
中图分类号: (Quantum error correction and other methods for protection against decoherence)