Results 41 to 50 of about 1,934,931 (287)
Quantum gravity from causal dynamical triangulations: a review [PDF]
Classical and quantum gravity, 2019 This topical review gives a comprehensive overview and assessment of recent results in causal dynamical triangulations, a modern formulation of lattice gravity, whose aim is to obtain a theory of quantum gravity nonperturbatively from a scaling limit of ...
R. Loll
semanticscholar +1 more source
Gravitational Decoherence [PDF]
, 1938 We discuss effects of loss of coherence in low energy quantum systems caused by or related to gravitation, referred to as gravitational decoherence.
Bassi, Angelo +2 more
core +19 more sources
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
doaj +1 more source
AIP Conference Proceedings, 1998 Review paper written for the electronic journal `Living Reviews'.
openaire +13 more sources
Quantum Gravity at the Corner [PDF]
Universe, 2018 We investigate the quantum geometry of a 2d surface S bounding the Cauchy slices of a 4d gravitational system. We investigate in detail for the first time the boundary symplectic current that naturally arises in the first-order formulation of general relativity in terms of the Ashtekar–Barbero connection.
Freidel, Laurent, Perez, Alejandro
openaire +4 more sources
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
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2021 In this review, we investigate the question of backreaction in different approaches to cosmological perturbation theory, and with a special focus on quantum theoretical aspects. By backreaction we refer here to the effects of matter field or cosmological
S. Schander, S. Schander, T. Thiemann
doaj +1 more source
The Unexpected Fractal Signatures in Fibonacci Chains
Fractal and Fractional, 2019 In this paper, a new fractal signature possessing the cardioid shape in the Mandelbrot set is presented in the Fourier space of a Fibonacci chain with two lengths, L and S, where L / S = ϕ . The corresponding pointwise dimension is 1.7.
Fang Fang, Raymond Aschheim, Klee Irwin
doaj +1 more source
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
doaj +1 more source
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
semanticscholar +1 more source