Work distribution functions for hysteresis loops in a single-spin system

Marathe, Rahul ; Dhar, Abhishek (2005) Work distribution functions for hysteresis loops in a single-spin system Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 72 (6). 066112_1-066112_9. ISSN 1539-3755

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Official URL: http://pre.aps.org/abstract/PRE/v72/i6/e066112

Related URL: http://dx.doi.org/10.1103/PhysRevE.72.066112

Abstract

We compute the distribution of the work done in driving a single Ising spin with a time-dependent magnetic field. Using Glauber dynamics we perform Monte Carlo simulations to find the work distributions at different driving rates. We find that in general the work distributions are broad with a significant probability for processes with negative dissipated work. The special cases of slow and fast driving rates are studied analytically. We verify that various work fluctuation theorems corresponding to equilibrium initial states are satisfied while a steady state version is not.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:79692
Deposited On:28 Jan 2012 12:09
Last Modified:18 May 2016 21:58

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