Phase Interference in a Multi-level Quantum-Dot System |
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Authors: | ZHANG Xu-Ming CHEN Xiao-Shuang LU Wei |
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Institution: | National Laboratory for the Infrared Physics, Shanghai Institute of Technology Physics, Chinese Academy of Sciences, Shanghai 200083 |
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Abstract: | Considering phase interference, we investigate coherent transport in a quantum dot by using a thermopower. In the single process of the electronic transport through the quantum dot, it is shown that the phase interference between the levels of a quantum dot is like the Aharonov-Bohm effect. The result indicates that the thermopower is very sensitive to phase interference. It is also found that the phase-difference change of the different levels of the quantum dot can determine the shape of the thermopower. |
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Keywords: | 73 21 La 73 23 Hk 73 23 -b |
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