Quantum information processing with semiconductor macroatoms

被引:437
作者
Biolatti, E
Iotti, RC
Zanardi, P
Rossi, F
机构
[1] INFM, I-10129 Turin, Italy
[2] Politecn Torino, Dipartimento Fis, I-10129 Turin, Italy
[3] ISI Fdn, I-10133 Turin, Italy
关键词
D O I
10.1103/PhysRevLett.85.5647
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
An all optical implementation of quantum information processing with semiconductor macroatoms is proposed. Our quantum hardware consists of an array of quantum dots and the computational degrees of freedom are energy-selected interband optical transitions. The quantum-computing strategy exploits exciton-exciton interactions driven by ultrafast multicolor laser pulses. Contrary to existing proposals based on charge excitations, our approach does not require time-dependent electric fields, thus allowing for a subpicosecond, decoherence-free, operation time scale in realistic semiconductor nanostructures.
引用
收藏
页码:5647 / 5650
页数:4
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