تقرير
Coupling renormalization flow in the strongly interacting regime of an asymptotically free quantum field theory in four dimensions
| العنوان: | Coupling renormalization flow in the strongly interacting regime of an asymptotically free quantum field theory in four dimensions |
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| المؤلفون: | Berges, Jürgen, Gurau, Razvan, Keppler, Hannes, Preis, Thimo |
| سنة النشر: | 2024 |
| المجموعة: | High Energy Physics - Phenomenology High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Theory, High Energy Physics - Phenomenology |
| الوصف: | We consider a scalar quantum field theory with global $O(N)^3$ symmetry in four Euclidean dimensions and solve it numerically in closed form in the large-N limit. For imaginary tetrahedral coupling the theory is asymptotically free, with stable and real quantum effective action. We demonstrate the dynamical build-up of a strong interaction as the correlation length increases in a regime where the coupling renormalization flow remains well-defined in the infrared. This is in contrast to perturbative results of asymptotically free theories, which predict that the coupling becomes ill-defined in the infrared, like in quantum chromodynamics. These properties make the model an important laboratory for the study of strong-coupling phenomena in quantum field theory from first principles. Comment: 5+4 pages, 4+2 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.08153 |
| رقم الأكسشن: | edsarx.2405.08153 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |