期刊
PHYSICAL REVIEW LETTERS
卷 85, 期 26, 页码 5647-5650出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.85.5647
关键词
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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.
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