Towards the map of quantum gravity
Jakub Mielczarek, Tomasz Trze\'sniewski

TL;DR
This paper explores the interconnections between various approaches to quantum gravity, emphasizing algebraic deformations, phase space structure, and the complex system nature of the field, aiming to create a comprehensive map of the domain.
Contribution
It introduces a graph-based, architectural framework to visualize and understand the relationships among different quantum gravity theories and concepts.
Findings
Identifies links between multiple quantum gravity approaches.
Highlights the role of algebraic deformations and phase space in quantum gravity.
Proposes a graph-based map to visualize the field's complex structure.
Abstract
In this paper we point out some possible links between different approaches to quantum gravity and theories of the Planck scale physics. In particular, connections between Loop Quantum Gravity, Causal Dynamical Triangulations, Ho\v{r}ava-Lifshitz gravity, Asymptotic Safety scenario, Quantum Graphity, deformations of relativistic symmetries and nonlinear phase space models are discussed. The main focus is on quantum deformations of the Hypersurface Deformations Algebra and Poincar\'{e} algebra, nonlinear structure of phase space, the running dimension of spacetime and nontrivial phase diagram of quantum gravity. We present an attempt to arrange the observed relations in the form of a graph, highlighting different aspects of quantum gravity. The analysis is performed in the spirit of a mind map, which represents the architectural approach to the studied theory, being a natural way to…
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