Beyond General Relativity: Models for Quantum Gravity, Loop Quantum Cosmology and Black Holes [PDF]
Universe, 2020 In the past two decades, we have witnessed extraordinary progress in precision measurements in cosmology [...]
Nick E. Mavromatos
doaj +8 more sources
Primordial perturbations in kinetically dominated regimes of general relativity and hybrid quantum cosmology [PDF]
Physical Review D, 2021 17 ...
Beatriz Elizaga Navascués +2 more
semanticscholar +10 more sources
Quantum cosmology of pure connection general relativity [PDF]
Classical and Quantum Gravity, 2023 Abstract We study homogeneous cosmological models in formulations of general relativity with cosmological constant based on a (complexified) connection rather than a spacetime metric, in particular in a first order theory obtained by integrating out the self-dual two-forms in the chiral Plebański formulation.
Steffen Gielen, Elliot Nash
semanticscholar +7 more sources
Analytical investigation of pre-inflationary effects in the primordial power spectrum: from General Relativity to hybrid Loop Quantum Cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 This work is an analytical study of the main differences between classical inflationary effects of a fast-roll regime and imprints of hybrid Loop Quantum Cosmology (LQC) on the primordial power spectrum. Effective LQC solutions of phenomenological interest typically contain a classical period of kinetic dominance prior to slow-roll inflation, with ...
Elizaga Navascués, Beatriz +1 more
semanticscholar +9 more sources
A scientometric study of general relativity and quantum cosmology from 2000 to 2012 [PDF]
Scientometrics, 2015 2015 is the centennial of Einstein General Relativity. On this occasion, we examine the General Relativity and Quantum Cosmology (GRQC) field of research by analysing 38291 papers uploaded on the electronic archives arXiv.org from 2000 to 2012. We establish a map of the countries contributing to GRQC in 2012.
Sebastien Gautrias, Stephane Fay
semanticscholar +7 more sources
Cosmological Special Theory of Relativity, Cosmological Quantum Physics, Cosmological Uncertainty Principles, Cosmological General Theory of Relativity [PDF]
SSRN Electronic Journal, 2023 In cosmological special relativity theory, we study Maxwell equations, electromagnetic wave equations and functions. In the cosmological special theory of relativity, we study energy?momentum relations, the Klein-Gordon equation and wave functions. If we solve the Klein?Gordon equation, we obtain the Yukawa potential in the cosmological inertial frame.
Sangwha Yi
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Making Classical and Quantum Canonical General Relativity Computable through a Power Series Expansion in the Inverse Cosmological Constant [PDF]
Physical Review Letters, 2000 5 pages, RevTeX with multicol and ...
Jorge Pullin, Rodolfo Gambini
openaire +6 more sources
ON THE RUNNING OF THE COSMOLOGICAL CONSTANT IN QUANTUM GENERAL RELATIVITY [PDF]
Modern Physics Letters A, 2010 We present arguments that show what the running of the cosmological constant means when quantum general relativity is formulated following the prescription developed by Feynman.
B. F. L. Ward
openaire +5 more sources
Aspects of Quantum Theory in General Relativity and Cosmology [PDF]
, 2020 After a brief introduction to Cosmology some quantum aspects of General Relativity and cosmology are presented. The radial motion of a massive particles in the ergosphere of the Kerr Black Hole is considered. Screening of Hawking radiation and shielding of the Penrose process is examined in the context of the region of negative energy inside the ...
McCaughey, Eamon
openaire +4 more sources
On the Green's function and iterative solutions of Loop Quantum Cosmology [PDF]
Gen.Rel.Grav. 38 (2006) 1387-1396, 2006 Here we shall find the green's function of the difference equation of loop quantum cosmology. To illustrate how to use it, we shall obtain an iterative solution for closed model and evaluate its corresponding Bohmian trajectory.Comment: To appear in ...
Shojai, Ali, Shojai, Fatimah
core +4 more sources