کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10481240 | 933081 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Glassy dynamics: effective temperatures and intermittencies from a two-state model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Glassy dynamics: effective temperatures and intermittencies from a two-state model Glassy dynamics: effective temperatures and intermittencies from a two-state model](/preview/png/10481240.png)
چکیده انگلیسی
We show the existence of intermittent dynamics in one of the simplest model of a glassy system: the two-state model, which has been used [Physica A 329 (2003) 357] to explain the origin of the violation of the fluctuation-dissipation theorem. The dynamics is analyzed through a Langevin equation for the evolution of the state of the system through its energy landscape. The results obtained concerning the violation factor and the non-Gaussian nature of the fluctuations are in good qualitative agreement with experiments measuring the effective temperature and the voltage fluctuations in gels and in polymer glasses. The method proposed can be useful to study the dynamics of other slow relaxation systems in which non-Gaussian fluctuations have been observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 351, Issue 1, 1 June 2005, Pages 14-21
Journal: Physica A: Statistical Mechanics and its Applications - Volume 351, Issue 1, 1 June 2005, Pages 14-21
نویسندگان
M. Naspreda, D. Reguera, A. Pérez-Madrid, J.M. RubÃ,