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New Journal of Physics, 2005 The goal of this article is to present a broad perspective on quantum gravity for \emph{non-experts}. After a historical introduction, key physical problems of quantum gravity are illustrated. While there are a number of interesting and insightful approaches to address these issues, over the past two decades sustained progress has primarily occurred in
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Supersymmetric minisuperspace models in self-dual loop quantum cosmology
Journal of High Energy Physics, 2021 In this paper, we study a class of symmetry reduced models of N $$ \mathcal{N} $$ = 1 super- gravity using self-dual variables. It is based on a particular Ansatz for the gravitino field as proposed by D’Eath et al. We show that the essential part of the
K. Eder, H. Sahlmann
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IS QUANTUM GRAVITY A SUPER-QUANTUM THEORY? [PDF]
International Journal of Modern Physics D, 2013 We argue that quantum gravity should be a super-quantum theory, that is, a theory whose nonlocal correlations are stronger than those of canonical quantum theory. As a super-quantum theory, quantum gravity should display distinct experimentally observable super-correlations of entangled stringy states.
Chang, Lay Nam +3 more
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Krylov complexity and spectral form factor for noisy random matrix models
Journal of High Energy Physics, 2023 We study the spectral properties of two classes of random matrix models: non-Gaussian RMT with quartic and sextic potentials, and RMT with Gaussian noise. We compute and analyze the quantum Krylov complexity and the spectral form factor for both of these
Arpan Bhattacharyya +4 more
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Quantum Reports, 2022 We recently proposed that topological quantum computing might be based on SL(2,C) representations of the fundamental group π1(S3\K) for the complement of a link K in the three-sphere.
Michel Planat +3 more
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Entropy and Quantum Gravity [PDF]
Entropy, 2015 We give a review, in the style of an essay, of the author’s 1998 matter-gravity entanglement hypothesis which, unlike the standard approach to entropy based on coarse-graining, offers a definition for the entropy of a closed system as a real and objective quantity.
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GRAVITY IN QUANTUM SPACE–TIME [PDF]
International Journal of Modern Physics D, 2010 The literature on quantum-gravity-inspired scenarios for the quantization of space–time has so far focused on particle-physics-like studies. This is partly justified by the present limitations of our understanding of quantum gravity theories, but we here argue that valuable insight can be gained through semi-heuristic analyses of the implications for ...
AMELINO-CAMELIA, Giovanni +3 more
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Methods for Calculating Empires in Quasicrystals
Crystals, 2017 This paper reviews the empire problem for quasiperiodic tilings and the existing methods for generating the empires of the vertex configurations in quasicrystals, while introducing a new and more efficient method based on the cut-and-project technique ...
Fang Fang, Dugan Hammock, Klee Irwin
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Quantum Gravity phenomenology [PDF]
Physics World, 2003 9 pages, LaTex. These notes were prepared while working on an invited contribution to the November 2003 issue of Physics World, which focused on quantum gravity. They intend to give a non-technical introduction (accessible to readers from outside quantum gravity) to "Quantum Gravity Phenomenology"
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Journal of High Energy Physics, 2021 In this article, the Cartan geometric approach toward (extended) supergravity in the presence of boundaries will be discussed. In particular, based on new developments in this field, we will derive the Holst variant of the MacDowell-Mansouri action for N
K. Eder, H. Sahlmann
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