Inas/gaas single-electron quantum dot qubit | |
Li, SS; Xia, JB; Liu, JL; Yang, FH; Niu, ZC; Feng, SL; Zheng, HZ | |
刊名 | Journal of applied physics |
2001-12-15 | |
卷号 | 90期号:12页码:6151-6155 |
ISSN号 | 0021-8979 |
通讯作者 | Li, ss() |
英文摘要 | The time evolution of the quantum mechanical state of an electron is calculated in the framework of the effective-mass envelope function theory for an inas/gaas quantum dot. the results indicate that the superposition state electron density oscillates in the quantum dot, with a period on the order of femtoseconds. the interaction energy e-ij between two electrons located in different quantum dots is calculated for one electron in the ith pure quantum state and another in the jth pure quantum state. we find that e-11]e-12]e-22, and e-ij decreases as the distance between the two quantum dots increases. we present a parameter-phase diagram which defines the parameter region for the use of an inas/gaas quantum dot as a two-level quantum system in quantum computation. a static electric field is found to efficiently prolong the decoherence time. our results should be useful for designing the solid-state implementation of quantum computing. (c) 2001 american institute of physics. |
WOS关键词 | PHASE BREAKING ; LOGIC GATES ; COMPUTATION ; COMPUTERS ; STATE |
WOS研究方向 | Physics |
WOS类目 | Physics, Applied |
语种 | 英语 |
出版者 | AMER INST PHYSICS |
WOS记录号 | WOS:000172489800052 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2429003 |
专题 | 半导体研究所 |
通讯作者 | Li, SS |
作者单位 | Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Li, SS,Xia, JB,Liu, JL,et al. Inas/gaas single-electron quantum dot qubit[J]. Journal of applied physics,2001,90(12):6151-6155. |
APA | Li, SS.,Xia, JB.,Liu, JL.,Yang, FH.,Niu, ZC.,...&Zheng, HZ.(2001).Inas/gaas single-electron quantum dot qubit.Journal of applied physics,90(12),6151-6155. |
MLA | Li, SS,et al."Inas/gaas single-electron quantum dot qubit".Journal of applied physics 90.12(2001):6151-6155. |
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