The communication complexity of the Hamming distance problem
The communication complexity of the Hamming distance problem
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DOI:
10.1016/j.ipl.2006.01.014
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发表时间:
2006-08-31
影响因子:
0.5
通讯作者:
Zhu, Yufan
中科院分区:
文献类型:
--
作者:
Huang, Wei;Shi, Yaoyun;Zhu, Yufan
We investigate the randomized and quantum communication complexity of the HAMMING DISTANCE problem, which is to determine if the Hamming distance between two n-bit strings is no less than a threshold d. We prove a quantum lower bound of Omega (d) qubits in the general interactive model with shared prior entanglement. We also construct a classical protocol of O(d log d) bits in the restricted Simultaneous Message Passing model with public random coins, improving previous protocols of O(d(2)) bits [A.C.-C. Yao, On the power of quantum fingerprinting, in: Proceedings of the 35th Annual ACM Symposium on Theory of Computing, 2003, pp. 77-81], and O(d log n) bits [D. Gavinsky, J. Kempe, R. de Wolf, Quantum communication cannot simulate a public coin, quant-ph/0411051, 2004]. (c) 2006 Published by Elsevier B.V.