تقرير
Chaotic LLM billiards
| العنوان: | Chaotic LLM billiards |
|---|---|
| المؤلفون: | Berenstein, David, Maderazo, Elliot, Mancilla, Robinson, Ramirez, Anayeli |
| سنة النشر: | 2023 |
| المجموعة: | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Theory, General Relativity and Quantum Cosmology |
| الوصف: | We study null geodesics of the ten-dimensional LLM geometries. In particular, we show that there are a subset of these null geodesics that are confined to the LLM plane. The effective dynamics of these in-plane geodesics is that of a Hamiltonian system with two degrees of freedom (a phase space of dimension 4). We show that these are chaotic. In the two-coloring of the LLM plane, if they start in the empty region, they cannot penetrate the filled region and viceversa. The dynamical problem is therefore very similar to that of a billiards problem with fixed obstacles. We study to what extent LLM geometries with many droplets may be treated as an incipient black hole and draw analogies with the fuzzball proposal. We argue that for in-plane null geodesics deep in the interior of a region with a lot of droplets, in order to exit towards the $AdS$ boundary they will need to undergo a process that resembles diffusion. This mechanism can account for signals getting lost in the putative black hole for a very long time. Comment: 18 pages, 8 figures, uses JHEP. v2: Typos corrected, references added |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2305.19321 |
| رقم الأكسشن: | edsarx.2305.19321 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |