arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1111.2216quant-ph
收藏

去除在量子存储器信道上传输的信号中的相关性

Removing correlations in signals transmitted over a quantum memory channel

Cosmo Lupo, Laleh Memarzadeh, Stefano Mancini

摘要:

我们考虑玻色记忆通道模型,它导致传输信号之间的相关性。在编码和解码阶段应用合适的酉变换允许完全去除相关性,将记忆通道映射到无记忆通道。然而,这样的转换,是全球范围内的任意大量的玻色子模式,是不现实的实现。然后,我们引入了一个家庭的有效实现的转换,可用于部分删除错误之间的相关性,我们量化的减少与无记忆通道的差距。

英文摘要:

We consider a model of bosonic memory channel, which induces correlations among the transmitted signals. The application of suitable unitary transformations at encoding and decoding stages allows the complete removal of correlations, mapping the memory channel into a memoryless one. However, such transformations, being global over an arbitrary large number of bosonic modes, are not realistically implementable. We then introduce a family of efficiently realizable transformations which can be used to partially remove correlations among errors, and we quantify the reduction of the gap with memoryless channels.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑