The Soccer-Ball Problem

Symmetry Integrability and Geometry-Methods and Applications

article

Sabine Hossenfelder¹ 

[1] KTH Royal Institute of Technology and Stockholm University

关键词: Lorentz-invariance;    quantum gravity;    quantum gravity phenomenology;    deformed special relativity;   

DOI  :  10.3842/SIGMA.2014.074

来源: National Academy of Science of Ukraine

【 摘 要 】

The idea that Lorentz-symmetry in momentum space could be modified but still remain observer-independent has received quite some attention in the recent years. This modified Lorentz-symmetry, which has been argued to arise in Loop Quantum Gravity, is being used as a phenomenological model to test possibly observable effects of quantum gravity. The most pressing problem in these models is the treatment of multi-particle states, known as the 'soccer-ball problem'. This article briefly reviews the problem and the status of existing solution attempts.

【 授权许可】

Unknown