التفاصيل البيبلوغرافية
| العنوان: |
Noisy teleportation of qubit states via the Greenberger-Horne-Zeilinger state or the W state. |
| المؤلفون: |
Li Yan-Ling, Fang Mao-Fa, Xiao Xing, Wu Chao, Hou Li-Zhen |
| المصدر: |
Chinese Physics B; Jun2010, Vol. 19 Issue 6, p1-8, 8p |
| مصطلحات موضوعية: |
QUANTUM teleportation, DISTRIBUTION (Probability theory), DAMPING (Mechanics), ROBUST control, PARAMETER estimation, AMPLITUDE modulation |
| مستخلص: |
The effects of distributing entanglement through the amplitude damping channel or the phase damping channel on the teleportation of a single-qubit state via the Greenberger-Horne-Zeilinger state and the W state are discussed. It is found that the average fidelity of teleportation depends on the type and rate of the damping in the channel. For the one-qubit affected case, the Greenberger-Horne-Zeilinger state is as robust as the W state, i.e., the same quantum information is preserved through teleportation. For the two-qubit affected case, the W state is more robust when the entanglement is distributed via the amplitude damping channel; if the entanglement is distributed via the phase damping channel, the W state is more robust when the noisy parameter is small while the Greenberger-Horne-Zeilinger state becomes more robust when it is large. For the three-qubit affected case, the Greenberger-Horne-Zeilinger state is more robust than the W state. [ABSTRACT FROM AUTHOR] |
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