【摘要】 使用双杂质的Anderson模型的哈密顿量 ,从理论上研究了一个嵌入耦合量子点的介观Aharonov Bohm环系统处在Kondo区时的基态性质 ,并用slave boson平均场方法求解了哈密顿量 .结果表明 ,在这个系统中 ,宇称效应和复杂的电流 相位关系的出现反映了两个量子点可以相干耦合 .更多还原

【Abstract】 We study theoretically the properties of the ground state of a mescopic ring with a series-coupled double quantum dot in the Kondo regime by means of the two-inpurity Anderson Hamiltonian. The Hamiltonian is solved by means of the slave-boson mean-field theory. It is shown that two dots can be coupled coherently, which is reflected in the appearance of parity effects and the complex current-phase relation in this system. This system might be a possile candidate for future device applications.更多还原