A numerical approach to large deviations in continuous time
A numerical approach to large deviations in continuous time
复制标题
连续时间大偏差的数值方法
DOI:
10.1088/1742-5468/2007/03/p03004
复制
发表时间:
2006
期刊:
影响因子:
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通讯作者:
J. Tailleur
中科院分区:
文献类型:
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作者:
V. Lecomte;J. Tailleur
We present an algorithm to evaluate large deviation functions associated to history-dependent observables. Instead of relying on a time discretization procedure to approximate the dynamics, we provide a direct continuous-time algorithm valuable for systems with multiple timescales, thus extending the work of Giardinà, Kurchan and Peliti (2006 Phys. Rev. Lett. 96 120603). The procedure is supplemented with a thermodynamic-integration scheme which improves its efficiency. We also show how the method can be used to probe large deviation functions in systems with a dynamical phase transition—revealed in our context through the appearance of a non-analyticity in the large deviation functions.