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
收藏
页码：73 / 76
页数：4
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