Semiconductor-based quantum information: Noiseless encoding in quantum-dot arrays

被引：0

作者：

Zanardi, P ^{[1
]}

Rossi, F ^{[1
]}

机构：

[1] INFM, IT-10133 Turin, Italy

来源：

QUANTUM COHERENCE AND DECOHERENCE | 1999年

关键词：

D O I：

10.1016/B978-044450091-5/50018-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A potential implementation of quantum-information schemes in semiconductor nanostructures is discussed. Physical qubits are realized ill terms of the two lowest energy levels of a semiconductor quantum dot. Encoding information in suitable singlet states is found to strongly suppress decoherence induced by the coupling to the phononic environment. The proposed strategy allows to realize a quantum-mechanically coherent evolution on a time-scale long compared to the femtosecond scale of modern ultrafast laser technology.

引用

页码：73 / 76

页数：4

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