کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5102674 | 1480089 | 2017 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reformulation of time-convolutionless mode-coupling theory near the glass transition
ترجمه فارسی عنوان
اصلاح فرمول نظریه همبستگی زمان - نزدیک به انتقال شیشه
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کلمات کلیدی
ارگودیک به انتقال غیر ارگودیک، انتقال شیشه، پارامتر غیر گاوسی، نوسان تراکم غیر خطی، تئوری همبستگی زمان بدون پیچیدگی،
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
چکیده انگلیسی
The time-convolutionless mode-coupling theory (TMCT) recently proposed is reformulated under the condition that one of two approximations, which have been used to formulate the original TMCT in addition to the MCT approximations done on a derivation of nonlinear memory function in terms of the intermediate-scattering function, is not employed because it causes unphysical results for intermediate times. The improved TMCT equation is then derived consistently under another approximation. It is first checked that the ergodic to non-ergodic transition obtained by a new equation is exactly the same as that obtained by an old one because the long-time dynamics of both equations coincides with each other. However, it is emphasized that a difference between them appears in the intermediate-time dynamics of physical quantities. Such a difference is explored numerically in the dynamics of a non-Gaussian parameter by employing the Percus-Yevick static structure factor to calculate the nonlinear memory function.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 484, 15 October 2017, Pages 453-464
Journal: Physica A: Statistical Mechanics and its Applications - Volume 484, 15 October 2017, Pages 453-464
نویسندگان
Michio Tokuyama,