2008/11/30 by Yuri Bonder, Daniel Sudarsky
Physics and Astronomy · #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Epistemology #Lorentz transformation #Mathematical physics #Noncommutative and Quantum Gravity Theories #Phenomenology (philosophy) #Philosophy #Physics #Quantum #Quantum gravity #Quantum mechanics #Theoretical physics #gr-qc #hep-ph
paper · pdf · doi:10.1016/s0034-4877(09)90025-8
Accepted for its publications in ROMP
arxiv created 2008/12/11 · openalex publication_date 2009/08/01 · arxiv updated 2015/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We describe a refined version of a previous proposal for the exploration of quantum gravity phenomenology. Unlike the original scheme, the one presented here is free from sign ambiguities while it shares with the previous one the essential features. It focuses on effects that could be thought as arising from a fundamental granularity of quantum space-time. The sort of schemes we consider are in sharp contrast with the simplest scenarios in that such granularity is assumed to respect Lorentz Invariance but it remains otherwise unspecified. The proposal is fully observer covariant, it involves non-trivial couplings of curvature to matter fields and leads to a well defined phenomenology. We present the effective Hamiltonian which could be used to analyze concrete experimental situations, and we shortly review the degree to which this proposal is in line with the fundamental ideas behind the equivalence principle.