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arXiv quant-ph/0007034quant-phcond-mat
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半导体宏原子的量子信息处理

Quantum-Information Processing with Semiconductor Macroatoms

Eliana Biolatti, Rita C. Iotti, Paolo Zanardi, Fausto Rossi

摘要:

提出了一种利用半导体宏原子实现量子信息处理的全光方案。我们的量子硬件由半导体量子点阵列组成,计算自由度是能量选择的带间光跃迁。所提出的量子计算策略利用了由多色激光脉冲的超快序列驱动的激子-激子相互作用。与现有的基于电荷激发的提议相反,本发明的全光学实施方式不需要施加时间相关的电场,从而允许在现实的最先进的半导体纳米结构中的亚皮秒(即,无退相干)操作时间尺度。

英文摘要:

An all optical implementation of quantum information processing with semiconductor macroatoms is proposed. Our quantum hardware consists of an array of semiconductor quantum dots and the computational degrees of freedom are energy-selected interband optical transitions. The proposed quantum-computing strategy exploits exciton-exciton interactions driven by ultrafast sequences of multi-color laser pulses. Contrary to existing proposals based on charge excitations, the present all-optical implementation does not require the application of time-dependent electric fields, thus allowing for a sub-picosecond, i.e. decoherence-free, operation time-scale in realistic state-of-the-art semiconductor nanostructures.

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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