Implications of communication complexity in multipartite systems

Implications of communication complexity in multipartite systems
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多方系统中通信复杂性的影响

DOI:
10.1103/physreva.77.032120
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
B. Reznik
B. Reznik
中科院分区:
--
文献类型:
--
作者:
S. Marcovitch;B. Reznik

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我们提出了一类嘈杂的 $N$ 方非本地盒子,它可以将 $N$ 方的所有通信复杂性问题变得微不足道。噪声水平对于任何数量的参与方都是恒定的,并且模拟非局部盒的概率仅略高于量子力学的概率。有趣的是,这类多部分非局部盒子对应于 Bell-Svetlichny 不等式,它体现了真正的多部分不可分性。这些结果为 Brassard 等人最近的猜想提供了进一步的支持,[Phys.莱特牧师。 96, 250401 (2006)] 如果自然界比量子力学所允许的更加非局域,那么通信的复杂性就会微不足道。
We present a class of noisy $N$-partite nonlocal boxes which reduces all communication complexity problems of $N$ parties to triviality. The noise level is constant for any number of parties and gives a probability of simulating the nonlocal box only slightly higher than that of quantum mechanics. Intriguingly, this class of multipartite nonlocal boxes corresponds to the Bell-Svetlichny inequality, which manifests genuine multipartite nonseparability. These results provide further support for the recent conjecture by Brassard et al., [Phys. Rev. Lett. 96, 250401 (2006)] that had nature been more nonlocal than quantum mechanics allows, communication complexity would have been trivial.
DOI: --
发表时间: 2022
期刊:
影响因子: --
作者:
佐藤慧;星野秀朋;米田元
通讯作者: 米田元