Shot noise in a quantum dot with the coulomb interaction |
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| Authors: | Xian-Sheng Cao Xing-Yi Tan |
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| Institution: | a School of Mathematics and Physics, Changzhou University, Changzhou, 213164, People’s Republic of Chinab Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Northwestern Polytechnical University, Xi’an 710129, People’s Republic of Chinac School of Materials Science and Engineering, Northern Nationality University, Yinchuan, 750021, People’s Republic of China |
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| Abstract: | We study the noise in a quantum dot which is coupled to metallic leads by using the non-equation of motion technique at the Kondo temperature TK. We compute the out of equilibrium density of states, the current and the shot noise. We find that the shot noise exhibits a nonmonotonic dependence on the voltage when variation of εd values of the QD energy in the absence of the external magnetic field occurs. We also find that the amplitude of current exhibits a saturation behavior when driving field is increased. |
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| Keywords: | A Quantum dot D Shot noise |
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