Results 51 to 60 of about 2,110,870 (239)
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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Low-dimensional de Sitter quantum gravity [PDF]
Journal of High Energy Physics, 2019 We study aspects of Jackiw-Teitelboim (JT) quantum gravity in two-dimensional nearly de Sitter (dS) spacetime, as well as pure de Sitter quantum gravity in three dimensions.
Jordan S. Cotler, K. Jensen, A. Maloney
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Nuclear Physics B, 2020 We define a three-dimensional quantum theory of gravity as the holographic dual of the Liouville conformal field theory. The theory is consistent and unitary by definition. The corresponding theory of gravity with negative cosmological constant has peculiar properties. The quantum theory has no normalisable AdS3 vacuum. The model contains primary black
Li, Songyuan +2 more
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The causal set approach to quantum gravity [PDF]
Living Reviews in Relativity, 2019 The causal set theory (CST) approach to quantum gravity postulates that at the most fundamental level, spacetime is discrete, with the spacetime continuum replaced by locally finite posets or “causal sets”.
S. Surya
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Stochastic gravitational-wave background in quantum gravity [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 Among all cosmological quantum-gravity or quantum-gravity-inspired scenarios, only very few predict a blue-tilted primordial tensor spectrum. We explore five of them and check whether they can generate a stochastic gravitational-wave background ...
G. Calcagni, S. Kuroyanagi
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Quantum Hair from Gravity [PDF]
Physical Review Letters, 2022 12 ...
Xavier Calmet +3 more
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Quantum Computation Toward Quantum Gravity [PDF]
General Relativity and Gravitation, 2001 The aim of this paper is to enlight the emerging relevance of Quantum Information Theory in the field of Quantum Gravity. As it was suggested by J. A. Wheeler, information theory must play a relevant role in understanding the foundations of Quantum Mechanics (the "It from bit" proposal).
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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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Nonperturbative quantum gravity [PDF]
Physics Reports, 2012 Review, 146 pages, many ...
Ambjørn, Jan +3 more
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Quasicrystal Tilings in Three Dimensions and Their Empires
Crystals, 2018 The projection method for constructing quasiperiodic tilings from a higher dimensional lattice provides a useful context for computing a quasicrystal’s vertex configurations, frequencies, and empires (forced tiles).
Dugan Hammock, Fang Fang, Klee Irwin
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