Mehl Jakob, Blickle Valentin, Seifert Udo, Bechinger Clemens
2. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.
Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Sep;82(3 Pt 1):032401. doi: 10.1103/PhysRevE.82.032401. Epub 2010 Sep 16.
We study the fluctuation-dissipation theorem for a brownian particle driven into a nonequilibrium steady state experimentally. We validate two different theoretical variants of a generalized fluctuation-dissipation theorem. Furthermore, we demonstrate that the choice of observables crucially affects the accuracy of determining the nonequilibrium response from steady state nonequilibrium fluctuations.
我们通过实验研究了处于非平衡稳态的布朗粒子的涨落耗散定理。我们验证了广义涨落耗散定理的两种不同理论变体。此外，我们证明了可观测量的选择对从稳态非平衡涨落确定非平衡响应的准确性有至关重要的影响。
