论文标题
电子电路中的噪声反馈
Noise feedback in an electronic circuit
论文作者
论文摘要
电子电路是通过将具有已知电流/电压特性的组件组合在一起来构建的，该组件对每个组件都是固有的，并且与电路的其余部分无关。这种方法分解了放置在超低温度下的纳米结构，这种现象称为动态库仑阻塞，通常归因于量子效应。在这里，我们在室温下在简单电路上报告了类似的现象，没有任何量子特征：带有电阻器的雪崩二极管，其中二极管的电流/电压特性在很大程度上取决于电阻的值。我们表明，关键成分是通过电路的其余部分自身上组件噪声的反馈。此外，我们开发了一种理论，该理论在存在外部电磁环境的情况下将运输和噪声联系起来，这很好地解释了我们的实验结果。
Electronic circuits are built by combining components with known current/voltage characteristics, which are intrinsic to each component and independent of the rest of the circuit. This approach breaks down for nanostructures placed at ultra-low temperature, a phenomenon referred to as Dynamical Coulomb Blockade, and usually attributed to quantum effects. Here we report similar phenomena on a simple circuit at room temperature, devoid of any quantum features: an avalanche diode in series with a resistor, where the current/voltage characteristics of the diode depends strongly on the value of the resistor. We show that the key ingredient for this is the feedback of the noise of the component on itself through the rest of the circuit. Moreover, we have developed a theory that links transport and noise in the presence of an external electromagnetic environment, which explains very well our experimental results.
