Resonant tunneling of electrons between two ferromagnets and a quantum dot in the presence of an externally applied magnetic field reveals a strong gate dependence in the linear and nonlinear bias regime. This gate dependence originates from the interplay between Coulomb interactions and spin-dependent hybridization between the quantum dot and the leads. To take into account Coulomb interaction strengths of the same order of magnitude as the external magnetic field and the hybridization strength we adopt the numerically exact iterative summation of path integrals.

中文翻译：

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通过相互作用的量子点自旋阀在共振输运中的相互作用诱导电流不对称性，由路径积分的迭代求和揭示

在外部施加磁场的作用下，两个铁磁体和一个量子点之间电子的共振隧穿显示出线性和非线性偏置状态下的强烈栅极依赖性。这种门依赖性源于库仑相互作用与量子点与引线之间自旋依赖性杂交之间的相互作用。为了考虑与外部磁场相同数量级的库仑相互作用强度和杂交强度，我们采用了路径积分的精确数值迭代求和。