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Work relation in instantaneous-equilibrium transition of forward and reverse processes

机译:正反过程瞬时平衡转换中的工作关系

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Realizing quasistatic processes in finite times requires additional control parameters to keep the system in instantaneous equilibrium (ieq). However, the finite-rate ieq transition of the reverse process is not just the time-reversal of the ieq forward process due to the odd-parity of controlling parameters. We theoretically show a work relation that the dissipated work of the ieq transition of the forward process is the same as that of the corresponding reverse process. The work relation can be interpreted as a generalization of equilibrium (quasistatic) processes. The work relation and the associated statistics of nonequilibrium work are experimentally confirmed in three different Brownian systems: the time-varying harmonic and non-harmonic potentials and the Brownian harmonic transport, which are manipulated by the optical feedback trap.
机译:在有限时间内实现准静态过程需要额外的控制参数,以保持系统处于瞬时平衡 (IEQ)。然而,由于控制参数的奇偶性,反向过程的有限速率 ieq 跃迁不仅仅是 ieq 正向过程的时间反转。从理论上讲,我们证明了正向过程的ieq跃迁的耗散功与相应的反向过程的功耗散关系相同。工作关系可以解释为平衡(准静态)过程的推广。在三个不同的布朗系统中,通过实验证实了非平衡功的功关系和相关统计:时变谐波和非谐波势以及布朗谐输运,它们由光反馈陷阱操纵。

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