arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.04667cond-mat.mes-hall
收藏

用含时探针读出量子屏蔽效应

Readout of quantum screening effects using a time-dependent probe

Nastaran Dashti, Matteo Acciai, Sara Kheradsoud, Maciej Misiorny, Peter Samuelsson, Janine Splettstoesser

摘要:

在电压和温度偏置的相干导体中,如果导体的传输依赖于能量,则会发生量子屏蔽效应。在这里,我们表明,一个额外的交流驱动的终端可以作为探针直接读出这种影响,迄今未开发。我们发现,筛选的静电偏压引起的电荷已经影响到他们的标准线性热电响应系数,由于非线性效应时占随时间变化的驱动频率。这些效果应该是在现实的实验条件下观察到的,可以从字面上打开和关闭与交流驱动。

英文摘要:

In voltage- and temperature-biased coherent conductors quantum screening effects occur if the conductor's transmission is energy-dependent. Here, we show that an additional ac-driven terminal can act as a probe for a direct readout of such effects, hitherto unexplored. We find that screening of charges induced by the static biases impacts already their standard linear thermoelectric response coefficients due to nonlinear effects when accounting for the frequency of the time-dependent driving. Those effects should be observable under realistic experimental conditions and can literally be switched on and off with the ac-driving.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑