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《Chinese Journal of Semiconductors》 2004-07
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Two-Electron Quantum Dot Qubit Modulated by Magnetic Field

Chen Zaosheng 1,2 ,Sun Lianliang 2 and Li Shushen 2(1 Department of Physics,East China Jiaotong University,Nanchang 330013,China) (2 State Key Laboratory for Superlattices and Microstructures,Institute of Semiconductors, The Chinese Academy of Sciences,Beijing 100083,China)  
The electronic structure of a two electron two dimensional quantum dot confined by a finite depth parabolic potential is investigated with different total spin S =0,1 in a magnetic field.Energy levels are calculated by means of exact diagonalization method in the frame work of effective mass approximation.It is found that the total spin of ground state of this system could be modulated by changing the magnitude of the magnetic field,which means the two spin states with S =0,1 of a two electron two dimensional quantum dot confined by a finite height parabolic potential can be used to construct a quantum bit.
【Fund】: 国家自然科学基金 (批准号 :10 1740 76);; 国家重点基础研究专项经费 (批准号 :G2 0 0 1CB3 0 95 0 0 )资助项目~~
【CateGory Index】: O411.1
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【References】
Chinese Journal Full-text Database 2 Hits
1 CHU Haijian~(1,2,+) CHEN Jiankang~3 WANG Jianxiang~2 1 College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225009,China 2 Department of Mechanics and Aerospace Engineering,College of Engineering,Peking University,Beijing 100871,China 3 Mechanics & Materials Science Research Center,College of Engineering,Ningbo University,Ningbo 315211,China;ADVANCES IN THE STUDY OF PROPERTIES AND MECHANICS OF SEMICONDUCTOR QUANTUM DOT STRUCTURES[J];Advances in Mechanics;2007-04
2 ZHU Meng-zhao,ZHAO Hua,XIONG Wen,GUO Fu-sheng(Institute of Condensed Matter Physics and Department of Physics,College of Mathematics and Physics,Chongqing University 400044,China);Computation of Electron Energy Levels of a Quantum Dot with an Impurity in the Dot Center[J];Acta Sinica Quantum Optica;2007-01
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 SHI Wen-hua, LI Chuan-bo, WANG Qi-ming (State nese Academy of Sciences, Beijing 100083, CHN);Research Progress on the Growth of Ge/Si Quantum Dot[J];Semiconductor Optoelectronics;2004-04
2 Wang Liguo 1,Xiao Jinglin 1 and Li Shushen 2(1 Department of Physics,Inner Mongolia National University,Tongliao 028043,China)(2 National Laboratory for Superlattices and Microstructures,Institute of Semiconductors,The Chinese Academy of Sciences,Beijing 100083,China);Properties of Strong-Coupling Magnetopolaron in Semiconductor Quantum Dot[J];Chinese Journal of Semiconductors;2004-08
3 Liu Yumin 1,2,,Yu Zhongyuan 1,2,Yang Hongbo 1,2,and Huang Yongzhen3(1 School of Science,Beijing University of Posts & Telecommunications,Beijing 100876,China) (2 Key Laboratory of Ministry of Education for Optical Communication and Lightwave Technologies,Beijing 100876,China) (3 State Key Laboratory of Integrated Optoelectronics,Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083,China);Influences of Differently Shaped Quantum Dots on Elastic Strain Field Distributions[J];Chinese Journal of Semiconductors;2005-12
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7 YANG Wei WANG Hongtao MA Xinling HONG Wei FML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;ADVANCES IN NANOMECHANICS-PART II[J];Advances In Mechanics;2003-02
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9 YANG Jian-jun, WANG Xu (Department of Physics, NeiMongol University, Hohhot 010021, PRC);Spin State Oscillations in a Two-electron Quantum Dot under a Magnetic Field[J];Acta Scientiarum Naturalium Universitatis Neimongol;2002-02
10 YANG Hong-bo~1 , YU Zhong-yuan~1, LIU Yu-min~1, HUANG Yong-zhen~2 (1. School of Science,Beijing University of Posts & Telecommunications, Beijing 100876, China; 2. State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China);Investigation on Elastic Strain Energy in Quantum Dots[J];Journal of Synthetic Crystals;2004-04
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