Results 261 to 270 of about 1,530,241 (273)
Extended phase space thermodynamics of regular-AdS black hole. [PDF]
Sci RepRehan M, Islam SU, Ghosh SG.
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Gravitational Hamiltonian Systems and the Retarded Gravity Inequality. [PDF]
Entropy (Basel)Yahalom A.
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Cosmology and fundamental physics with the ELT-ANDES spectrograph. [PDF]
Exp Astron (Dordr)Martins CJAP +22 more
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Test of local realism via entangled Λ Λ ¯ system. [PDF]
Nat CommunBESIII Collaboration.
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2007
Abstract This chapter presents the application of quantum gravity to the Universe as a whole. The concept of minisuperspace is introduced and discussed. Various solutions of the Wheeler-DeWitt equation are found and discussed. Structure formation is discussed as well as boundary conditions and singularity avoidance.
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Abstract This chapter presents the application of quantum gravity to the Universe as a whole. The concept of minisuperspace is introduced and discussed. Various solutions of the Wheeler-DeWitt equation are found and discussed. Structure formation is discussed as well as boundary conditions and singularity avoidance.
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Physical Review D, 1987
This paper considers the extension of the ideas of quantum cosmology and, in particular, the proposal of Hartle and Hawking for the boundary conditions of the Universe, to models which incorporate fermions in a realistic manner. We consider inhomogeneous fermionic perturbations about a homogeneous, isotropic minisuperspace background model, by ...
J. J. Halliwell, P. D. D’Eath
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This paper considers the extension of the ideas of quantum cosmology and, in particular, the proposal of Hartle and Hawking for the boundary conditions of the Universe, to models which incorporate fermions in a realistic manner. We consider inhomogeneous fermionic perturbations about a homogeneous, isotropic minisuperspace background model, by ...
J. J. Halliwell, P. D. D’Eath
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Loop Quantum Cosmology: A brief review
, 2016In the last decade, progress on quantization of homogeneous cosmological spacetimes using techniques of loop quantum gravity has led to insights on various fundamental questions and has opened new avenues to explore Planck scale physics.
I. Agulló, Parampreet Singh
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Quantum cosmology and recollapse
Physical Review D, 1987The wave function of the Universe defined by the Hartle-Hawking proposal is studied for two minisuperspace models, the Friedmann-Robertson-Walker universe with a massive scalar field and the anisotropic Kantowski-Sachs cosmology. Solutions of the Wheeler-DeWitt equation are evaluated numerically.
Raymond Laflamme, E. P. S. Shellard
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Quantum cosmology with electromagnetism
Physical Review D, 1988We investigate the semiclassical quantum cosmology of the spatially homogeneous k = +1 Friedmann-Robertson-Walker minisuperspace model with the electromagnetic field included as a small perturbation on the gravitational background. The wave function is chosen adopting the Hartle-Hawking proposal. Owing to conformal invariance, the electromagnetic field
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Decoherence in quantum cosmology
Physical Review D, 1989We discuss the manner in which the gravitational field becomes classical in quantum cosmology. This involves two steps. First, one must show that the quantum state of the gravitational field becomes strongly peaked about a set of classical configurations.
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