论文标题

通过非线性射频传输的主导Andreev反思

Dominant Andreev Reflection through Nonlinear Radio-Frequency Transport

论文作者

Zhang, Tingyu, Tajima, Hiroyuki, Sekino, Yuta, Uchino, Shun, Liang, Haozhao

论文摘要

从理论上讲,我们通过空间均匀的拉比耦合提出了激光引起的Andreev反射和正常状态。通过分析超氟和正常状态之间的隧道电流,直到拉比耦合中的第四阶,我们发现Andreev电流在零温度下表现出非常规的非OHMIC转运。值得注意的是,Andreev电流给出了零失调的合成连接系统中唯一的贡献,而不管化学势偏置与超流体间隙的比率如何,这与传统的超导体正常金属连接处形成鲜明对比。我们的结果也可能铺平了一种通过Andreev反射作为量子信息镜的理解黑洞信息悖论的方法。

We theoretically propose the laser-induced Andreev reflection between two-component Fermi superfluid and normal states via spatially-uniform Rabi couplings. By analyzing the tunneling current between the superfluid and normal states up to the fourth order in the Rabi couplings, we find that the Andreev current exhibits unconventional non-Ohmic transport at zero temperature. Remarkably, the Andreev current gives the only contribution in the synthetic junction system at zero detunings regardless of the ratio of the chemical potential bias to the superfluid gap, which is in sharp contrast to that in the conventional superconductor-normal metal junction. Our result may also pave a way for understanding the black hole information paradox through the Andreev reflection as a quantum-information mirror.

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