An Adaptive Entanglement Distillation Scheme Using Quantum Low Density Parity Check Codes

Details An Adaptive Entanglement Distillation Scheme Using Quantum Low Density Parity Check Codes An Adaptive Entanglement Distillation Scheme Using Quantum Low Density Parity Check Codes

2008-07-14

arxiv.org/abs/0807.2122v1

Physics

Quantum Physics

12 pages, 6 figures

Scientific paper

Quantum low density parity check (QLDPC) codes are useful primitives for quantum information processing because they can be encoded and decoded efficiently. Besides, the error correcting capability of a few QLDPC codes exceeds the quantum Gilbert-Varshamov bound. Here, we report a numerical performance analysis of an adaptive entanglement distillation scheme using QLDPC codes. In particular, we find that the expected yield of our adaptive distillation scheme to combat depolarization errors exceed that of Leung and Shor whenever the error probability is less than about 0.07 or greater than about 0.28. This finding illustrates the effectiveness of using QLDPC codes in entanglement distillation.

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