Resonant transmission through a quantum dot in the Coulomb blockade regime
被引:55
作者:
Xiong, SJ
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Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R ChinaNanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Xiong, SJ
[1
]
Xiong, Y
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机构:Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
Xiong, Y
机构:
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
We carry out an exact calculation of the transmission of electrons through a quantum dot in the Coulomb blockade regime for both degenerate and nondegenerate cases. We show that the intrinsic interference among the paths produced by the states of the dot causes the phase coherence of adjacent resonant peaks. The expression of conductance obtained in the degenerate case reproduces the main features of a dot in the Kondo regime.