Large deviations and optimal control forces for hard particles in one dimension
Large deviations and optimal control forces for hard particles in one dimension
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一维硬颗粒的大偏差和最佳控制力
DOI:
10.1088/1742-5468/ab4801
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Dolezal J
中科院分区:
文献类型:
--
作者:
Dolezal J
We analyse large deviations of the dynamical activity in one-dimensional systems of diffusing hard particles. Using an optimal-control representation of the large-deviation problem, we analyse effective interaction forces which can be added to the system, to aid sampling of biased ensembles of trajectories. We find several distinct regimes, as a function of the activity and the system size: we present approximate analytical calculations that characterise the effective interactions in several of these regimes. For high activity the system is hyperuniform and the interactions are long-ranged and repulsive. For low activity, there is a near-equilibrium regime described by macroscopic fluctuation theory, characterised by long-ranged attractive forces. There is also a far-from-equilibrium regime in which one of the interparticle gaps becomes macroscopic and the interactions depend strongly on the size of this gap. We discuss the extent to which transition path sampling of these ensembles is improved by adding suitable control forces.
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DOI:
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1999
期刊:
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作者:
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通讯作者:
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DOI:
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发表时间:
2008
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
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DOI:
10.1088/1742-5468/2015/12/p12001
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2015
期刊:
Journal of Statistical Mechanics: Theory and Experiment
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DOI:
10.1088/1742-5468/2007/03/p03004
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2006
期刊:
Journal of Statistical Mechanics: Theory and Experiment
影响因子:
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作者:
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通讯作者:
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