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arXiv quant-ph/0611130quant-ph
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存储通道的量子比特纠缠和最优串

Entanglement and optimal strings of qubits for memory channels

V. Karimipour, L. Memarzadeh

摘要:

我们研究了通过将经典数据编码成任意长度的纠缠输入态来增强互信息的问题,并表明,虽然存在阈值记忆或相关参数,超过该阈值,纠缠态优于可分离态,从而导致更高的互信息,但随着字符串长度的增加,该记忆阈值朝向1增加。这些观察结果意味着将经典数据编码到纠缠态可能不会增强量子信道的经典容量。

英文摘要:

We investigate the problem of enhancement of mutual information by encoding classical data into entangled input states of arbitrary length and show that while there is a threshold memory or correlation parameter beyond which entangled states outperform the separable states, resulting in a higher mutual information, this memory threshold increases toward unity as the length of the string increases. These observations imply that encoding classical data into entangled states may not enhance the classical capacity of quantum 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。

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