Code-division multiple-access multiuser demodulator by using quantum fluctuations.
Code-division multiple-access multiuser demodulator by using quantum fluctuations.
复制标题
利用量子涨落的码分多址多用户解调器。
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Okada
中科院分区：
文献类型：
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作者：
Yosuke Otsubo;J. Inoue;K. Nagata;M. Okada
我们检查了代码分割多访问（CDMA）多源解调器的平均案例性能，其中利用量子波动在贝叶斯推论的背景下解调了原始消息。量子波动是在无限范围Ising自旋玻璃模型中作为横向场内置的。我们通过使用统计力学评估性能测量值。我们确认，使用量子波动的CDMA多源调节器通过平均热波动实现与常规的CDMA多源调制器的性能大致相同。我们还发现，原始信息检索的质量与横向场的振幅之间的关系在某种程度上是典型概率信息处理中的“通用特征”，即图像恢复，错误校正验证代码和CDMA Multiuser Demodulation中的关系。
We examine the average-case performance of a code-division multiple-access (CDMA) multiuser demodulator in which quantum fluctuations are utilized to demodulate the original message within the context of Bayesian inference. The quantum fluctuations are built into the system as a transverse field in the infinite-range Ising spin glass model. We evaluate the performance measurements by using statistical mechanics. We confirm that the CDMA multiuser modulator using quantum fluctuations achieve roughly the same performance as the conventional CDMA multiuser modulator through thermal fluctuations on average. We also find that the relationship between the quality of the original information retrieval and the amplitude of the transverse field is somehow a "universal feature" in typical probabilistic information processing, viz., in image restoration, error-correcting codes, and CDMA multiuser demodulation.