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Manipulation of internal blockage in triangular triple quantum dot

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We utilize the calculation of hierarchical equations of motion to demonstrate that the spin-dependent properties be-tween adjacent quantum dots(QDs)can be changed by breaking the internal symmetry configuration,corresponding to the inversion of dominant chiral states.In the linear triple quantum dots(LTQDs)connected to two electron reservoirs,we can observe that the blockage appears at the triangle triple quantum dots(TTQDs)by gradually increasing the coupling strength between next-nearest double QDs.When the initial coupling between LTQDs has altered,the internal chiral cir-culation also undergoes the corresponding transform,thus achieving qualitative regulation and detection of the blocking region.We also investigate the response of the chiral circulation to the dot-lead coupling strength,indicating the overall robust chiral circulation of the TTQDs frustration.

quantum dotschiral topology blocking

齐月、魏建华

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Department of Physics,Renmin University,Beijing 100876,China

国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金中国科学院战略规划重点项目中国科学院战略规划重点项目国家自然科学基金Training Program of Major Research Plan of NSFCOutstanding Innovative Talents Cultivation Funded Programs of Renmin University of China(2023)Physical Laboratory of High Performance Computing at Renmin University of China

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2024

10.1088/1674-1056/ad2d54

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(5)
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