论文标题
Cooper-Pair Tunneling进入量子厅系统的当前相关性
Current correlations of Cooper-pair tunneling into a quantum Hall system
论文作者
论文摘要
我们研究了库珀对通过超导体和整数填充因子处的超导体和量子霍尔边缘状态之间的量子点接触。我们将隧道电流及其有限频噪声计算为在低温下方的DC和AC偏置电压的隧道振幅中的领先顺序。在零温度和隧穿到单个边缘通道的情况下，由于保利排除原理，电导和差分射击噪声消失了。相比之下，在两个边缘通道的存在下，这种保利封锁被软化，并揭示了非零的电导和射击噪声。
We study Cooper pair transport through a quantum point contact between a superconductor and a quantum Hall edge state at integer and fractional filling factors. We calculate the tunnelling current and its finite-frequency noise to the leading order in the tunneling amplitude for dc and ac bias voltage in the limit of low temperatures. At zero temperature and in case of tunnelling into a single edge channel both the conductance and differential shot noise vanish as a result of Pauli exclusion principle. In contrast, in the presence of two edge channels, this Pauli blockade is softened and a non-zero conductance and shot noise are revealed.
