Results 171 to 180 of about 624,114 (277)

Coulomb gauge in one-loop quantum cosmology [PDF]

open access: green, 1994
Giampiero Esposito   +1 more
openalex   +1 more source

Loop Quantum Gravity Phenomenology: Linking Loops to Observational Physics

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
Research during the last decade demonstrates that effects originating on the Planck scale are currently being tested in multiple observational contexts.
Florian Girelli   +2 more
doaj   +1 more source

Universal features of quantum bounce in loop quantum cosmology

open access: yesPhysics Letters B, 2017
In this Letter, we study analytically the evolutions of the flat Friedmann–Lemaitre–Robertson–Walker (FLRW) universe and its linear perturbations in the framework of the dressed metric approach in loop quantum cosmology (LQC). Assuming that the evolution
Tao Zhu   +4 more
doaj  

Preinflationary Dynamics of Power-Law Potential in Loop Quantum Cosmology †

open access: yesUniverse, 2018
In this article, I mainly discuss the dynamics of the pre-inflationary Universe for the potential V ( ϕ ) ∝ ϕ n with n = 5 / 3 in the context of loop quantum cosmology, in which the big bang singularity is resolved by a non ...
M. Shahalam
doaj   +1 more source

Loop Quantum Cosmology and Boundary Proposals [PDF]

open access: yesarXiv, 2003
For many years, the most active area of quantum cosmology has been the issue of choosing boundary conditions for the wave function of a universe. Recently, loop quantum cosmology, which is obtained from loop quantum gravity, has shed new light on this question.
arxiv  

Loop Quantum Gravity Vacuum with Nondegenerate Geometry

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
In loop quantum gravity, states of the gravitational field turn out to be excitations over a vacuum state that is sharply peaked on a degenerate spatial geometry.
Hanno Sahlmann, Tim Koslowski
doaj   +1 more source

Inhomogeneous Universe in Loop Quantum Gravity [PDF]

open access: yesarXiv, 2013
It is discussed a truncation of the kinematical Hilbert space of Loop Quantum Gravity, which describes the dynamical system associated with an inhomogeneous cosmological model.
arxiv  

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