论文标题
辐射热电流噪声光谱中谐振模式的签名
Signature of resonant modes in radiative heat current noise spectrum
论文作者
论文摘要
身体之间的辐射热传递通常由透射率狭窄的共振主导，例如。由于空腔模式或表面激发。但是，在平均热量电流中，这种共鸣特性不可见。在这里，我们表明，热电流的噪声光谱可以作为热携带激发的直接探测。也就是说，谐振模式在噪声频谱中产生尖峰，其宽度与模式寿命相关。我们证明，现实的超导电路或二维金属之间的热传递可以实现我们的预测。
Radiative heat transfer between bodies is often dominated by a narrow resonance in the transmission, e.~g. due to a cavity mode or a surface excitation. However, this resonant character is not visible in the average heat current. Here, we show that the noise spectrum of heat current can serve as a direct probe of the heat-carrying excitations. Namely, the resonant mode produces a sharp peak in the noise spectrum with a width related to the mode lifetime. We demonstrate that heat transfer in realistic superconducting circuits or between two-dimensional metals can realize our predictions.
