标题： 横向相对局域效应在德西特时空中的表现 显示英文标题

标题： Transverse relative locality effects in de Sitter spacetime

摘要： 双特殊相对论（DSR）模型在普朗克尺度上表现出相对论对称性的变形，并由于能够通过宇宙信使对其进行测试，因此成为量子引力现象学研究的基石之一。 它们的一些预测表现为相对局域效应，意味着对一个观察者局部的事件可能对远处的观察者并不局部。 在这项工作中，我们专注于横向相对局域模型，其中非局域化发生在连接两个远距离观察者的方向的垂直方向上。 我们提出了这些模型在弯曲时空中的首次推广，构建了2 + 1维德西特代数的横向变形，并研究了其在粒子传播上的现象学影响。 显示英文摘要

摘要： Doubly Special Relativity (DSR) models are characterized by the deformation of relativistic symmetries at the Planck scale and constitute one of the cornerstones for quantum gravity phenomenology research, due to the possibility of testing them with cosmological messengers. Some of their predictions manifest themselves as relative locality effects, implying that events local to an observer might not appear to be so for a distant one. In this work we focus on transverse relative locality models, where the delocalization occurs along the direction perpendicular to the one connecting two distant observers. We present the first generalization of these models in curved spacetime, constructing a transverse deformation of the de Sitter algebra in 2 + 1 D and investigating its phenomenological implications on particle propagation.