English

CPT and Lorentz violation as signatures for Planck-scale physics

High Energy Physics - Phenomenology 2009-10-08 v1

Abstract

In recent years, the breakdown of spacetime symmetries has been identified as a promising research field in the context of Planck-scale phenomenology. For example, various theoretical approaches to the quantum-gravity problem are known to accommodate minute violations of CPT invariance. This talk covers various topics within this research area. In particular, some mechanisms for spacetime-symmetry breaking as well as the Standard-Model Extension (SME) test framework will be reviewed; the connection between CPT and Lorentz invariance in quantum field theory will be exposed; and various experimental CPT tests with emphasis on matter--antimatter comparisons will be discussed.

Keywords

Cite

@article{arxiv.0907.1319,
  title  = {CPT and Lorentz violation as signatures for Planck-scale physics},
  author = {Ralf Lehnert},
  journal= {arXiv preprint arXiv:0907.1319},
  year   = {2009}
}

Comments

6 pages

R2 v1 2026-06-21T13:22:40.256Z