| Автор | Andre Bessa |
| Автор | Carlos Alberto Aragao de Carvalho |
| Автор | Eduardo Souza Fraga |
| Автор | Francois Gelis |
| Дата выпуска | 2007-08-01 |
| dc.description | We present a systematic semiclassical procedure to compute the partition function for scalar field theories at finite temperature. The central objects in our scheme are the solutions of the classical equations of motion in imaginary time, with spatially independent boundary conditions. Field fluctuations—both field deviations around these classical solutions, and fluctuations of the boundary value of the fields—are resummed in a Gaussian approximation. In our final expression for the partition function, this resummation is reduced to solving certain ordinary differential equations. Moreover, we show that it is renormalizable with the usual 1-loop counterterms. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Semiclassical thermodynamics of scalar fields |
| Тип | paper |
| DOI | 10.1088/1126-6708/2007/08/007 |
| Electronic ISSN | 1029- 8479 |
| Print ISSN | 1126-6708 |
| Журнал | Journal of High Energy Physics |
| Том | 2007 |
| Первая страница | 7 |
| Последняя страница | 007 |
| Выпуск | 08 |
