2004/02/04 by Robert C. Myers, Maxim Pospelov · 18 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Computer science #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies #Physics #Quantum #Quantum dynamics #Quantum gravity #Quantum mechanics #Quantum process #Semiclassical gravity #Theoretical physics #gr-qc
paper · pdf · doi:10.1142/9789812702340_0084
QTS3 proceedings; review of hep-ph/0301124 plus extended discussion
arxiv created 2004/02/04 · openalex publication_date 2004/10/01 · arxiv updated 2017/08/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The existence of a new fundamental scale may lead to modified dispersion relations for particles at high energies. Such modifications seem to be realized with the Planck scale in certain descriptions of quantum gravity. We apply effective field theory to this problem and identify dimension 5 operators that would lead to cubic modifications of dispersion relations for Standard Model particles. We also discuss other issues related to this approach including various experimental bounds on the strength of these interactions. Further we sketch a scenario where mixing of these operators with dimensions 3 and 4 due to quantum effects is minimal.