| Автор | T J Newman |
| Автор | A J Bray |
| Дата выпуска | 1990-10-21 |
| dc.description | The authors consider the dynamics of the n-component Ginzburg-Landau model with nonconserved order parameter (model A) following a quench from a high-temperature equilibrium state to zero temperature. The two-time correlation function of the order-parameter field is found in the 1/n expansion to have the asymptotic scaling form Ck(t,t')=t'<sup>d</sup>2/(t/t')<sup>lambda </sup>2/f (k<sup>2</sup>t,k<sup>2</sup>t') for t>>t', with f(0,0)=constant. The form of the new exponent lambda (which is a non-trivial function of n and d) was given explicitly to O(1/n) in a recent letter. The purpose of this study is to present a more detailed account of the calculation leading to the O(1/n) form for lambda . They also examine the role of thermal fluctuations in the ordered phase and the effect of long-range initial correlations on the ordering process. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Dynamic correlations in domain growth: a 1/n expansion |
| Тип | paper |
| DOI | 10.1088/0305-4470/23/20/011 |
| Print ISSN | 0305-4470 |
| Журнал | Journal of Physics A: Mathematical and General |
| Том | 23 |
| Первая страница | 4491 |
| Последняя страница | 4507 |
| Аффилиация | T J Newman; Dept. of Theor. Phys., Manchester Univ., UK |
| Аффилиация | A J Bray; Dept. of Theor. Phys., Manchester Univ., UK |
| Выпуск | 20 |
