毛细胞束有源噪声振子的涨落响应定理
Fluctuation-response theorem for the active noisy oscillator of the hair-cell bundle
摘要：
脊椎动物耳朵中感觉细胞的毛束提供了一个接近霍普夫分叉的噪声振荡器的例子。对自发振荡和强迫振荡数据的分析表明，波动耗散定理遭到强烈违反，揭示了一个潜在的活动过程的存在，使系统处于不平衡状态。然而，我们表明，广义波动耗散定理，非平衡稳态有效，是履行我们的实验精度和计算近似的限制，当选择足够的共轭自由度。
英文摘要：
The hair bundle of sensory cells in the vertebrate ear provides an example of a noisy oscillator close to a Hopf bifurcation. The analysis of the data from both spontaneous and forced oscillations shows a strong violation of the fluctuation-dissipation theorem, revealing the presence of an underlying active process that keeps the system out of equilibrium. Nevertheless, we show that a generalized fluctuation-dissipation theorem, valid for non-equilibrium steady states, is fulfilled within the limits of our experimental accuracy and computational approximations, when the adequate conjugate degrees of freedom are chosen.
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