针对希格斯RNA模型的优化有限时间工作协议
Optimized Finite-Time Work Protocols for the Higgs RNA-Model
AI总结：
针对希格斯RNA模型的最小功有限时间驱动问题，用并行回火法数值求解玻璃态多粒子系统的优化协议，发现协议首尾有跳变、最优性接近平衡解折叠点，并分析了工作分布变化。
摘要：
本文研究了希格斯RNA模型（Higgs RNA-Model）满足最小功要求的有限时间驱动协议。研究考虑了低温下呈现发夹结构的RNA序列，这类序列常被作为随机热力学中的典型模板系统。研究采用并行回火法（parallel tempering method），通过数值计算确定了这一玻璃态多粒子系统的优化工作协议。该协议在起始和结束阶段存在明显跳变，这一特征此前已在单粒子系统中被观测到。与直觉相反，最优性似乎是通过保持接近平衡解折叠转变点实现的。本文还从自由能估计、优化协议对稀有工作过程起始条件的影响等角度，讨论了与朴素线性驱动协议所得结果相比，工作分布的变化情况。
英文摘要：
The Higgs RNA-Model is studied in regard to finite-time driving protocols with minimal-work requirement. In this paper, RNA sequences which at low temperature exhibits hairpins are considered, which are often cited as typical template systems in stochastic thermodynamics. The optimized work protocols for this glassy many-particle system are determined numerically using the parallel tempering method. The protocols show distinct jumps at the beginning and end, which have been observed previously already for single-particle systems. Counter intuitively, optimality seems to be achieved by staying close to the equilibrium unfolding transition point. The change of work distributions, compared to those resulting from a naive linear driving protocol, are discussed generally and in terms of free energy estimation as well as the effect of optimized protocols on rare work process starting conditions.
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