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arXiv quant-ph/9804016quant-phcond-mat
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半导体中的量子信息:量子点阵列的无噪声编码

Quantum Information in Semiconductors: Noiseless Encoding in a Quantum-Dot Array

Paolo Zanardi, Fausto Rossi

摘要:

一个潜在的实现量子计算计划在基于半导体结构的建议。特别地,量子点阵列被示出为用于无噪声信息编码的理想量子寄存器。除了由于众所周知的声子瓶颈而抑制量子点中的相位破坏过程之外,我们还表明,与现代超快激光技术的飞秒尺度相比,适当的量子编码可以在时间尺度上实现无退相干的演化。这一结果可能为实现基于半导体的量子处理器开辟道路。

英文摘要:

A potential implementation of quantum-computation schemes in semiconductor-based structures is proposed. In particular, an array of quantum dots is shown to be an ideal quantum register for a noiseless information encoding. In addition to the suppression of phase-breaking processes in quantum dots due to the well-known phonon bottleneck, we show that a proper quantum encoding allows to realise a decoherence-free evolution on a time-scale long compared to the femtosecond scale of modern ultrafast laser technology. This result might open the way to the realization of semiconductor-based quantum processors.

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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