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首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Monte Carlo calculation of the mean work required to drive a bistable system
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Monte Carlo calculation of the mean work required to drive a bistable system

机译：蒙特卡罗计算驱动双稳态系统所需的平均功

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摘要

The mean work required to drive a bistable system from one equilibrium state to another is calculated by using a Langevin simulation combined with Monte Carlo sampling. The resulting work depends not only on the proposal form but also on the temperature, because the particle subjected to thermal fluctuation passes over the barrier during a finite time. This shows that the mean work of a periodic signal done on a particle in a double-well potential is a non-monotonic function of the temperature when the energetic barrier is encountered. By applying this to information erasure in a Brownian computer, it is discovered that the work dissipated into the environment for 1-bit information erasure from two states to a single state can be minimized at a finite temperature.
机译：通过将Langevin模拟与蒙特卡洛采样相结合，计算出将双稳态系统从一种平衡状态驱动到另一种平衡状态所需的平均功。产生的工作不仅取决于建议的形式，还取决于温度，因为受到热波动的颗粒会在有限的时间内通过屏障。这表明在遇到高能势垒时，在双阱势中对粒子执行的周期信号的平均功是温度的非单调函数。通过将其应用于布朗计算机中的信息擦除，发现可以在有限的温度下最小化耗散到环境中的工作，以便从两个状态到单个状态进行1位信息擦除。

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