Results 101 to 110 of about 77,468 (282)
ON THE SEMICLASSICAL LIMIT OF LOOP QUANTUM COSMOLOGY
International Journal of Modern Physics D, 2012 We consider a k = 0 Friedman–Robertson–Walker (FRW) model within loop quantum cosmology (LQC) and explore the issue of its semiclassical limit. The model is exactly solvable and allows us to construct analytical (Gaussian) coherent-state solutions for each point on the space of classical states.
Corichi, Alejandro, Montoya, Edison
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Variational methods in loop quantum cosmology [PDF]
Europhysics Letters (EPL), 2006 An action functional for the loop quantum cosmology difference equation is presented. It is shown that by guessing the general form of the solution and optimizing the action functional with respect to the parameters in the guessed solution one can obtain approximate solutions which are reasonably good.
Shojai, F., Shojai, A.
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Data‐Driven Review on Aerogels and Polymeric Aerogels
Angewandte Chemie, Volume 137, Issue 28, July 7, 2025.A review goes to data‐driven. An exhaustive literature survey provides an overview of research status on aerogels, a category of highly porous solids with unique physicochemical properties. Statistical/data‐driven analysis tells us positive/negative aspects; aerogels have a promising potential to contribute to emerging energy/environmental issues ...
Satoru Takeshita +2 more
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Primordial power spectrum from the Dapor–Liegener model of loop quantum cosmology [PDF]
General Relativity and Gravitation, 2018 We compute the predictions for the power spectrum of scalar perturbations from a recent new proposal for the effective Hamiltonian of loop quantum cosmology.
I. Agulló
semanticscholar +1 more source
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
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Supersymmetric minisuperspace models in self-dual loop quantum cosmology
Journal of High Energy Physics, 2021 In this paper, we study a class of symmetry reduced models of N $$ \mathcal{N} $$ = 1 super- gravity using self-dual variables. It is based on a particular Ansatz for the gravitino field as proposed by D’Eath et al. We show that the essential part of the
K. Eder, H. Sahlmann
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DeWitt Boundary Condition in One-Loop Quantum Cosmology
Universe, 2023 DeWitt’s suggestion that the wave function of the universe should vanish at the classical Big Bang singularity is considered here within the framework of one-loop quantum cosmology.
Giampiero Esposito
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Small Structures, Volume 6, Issue 11, November 2025.The review comprehensively summarizes the binding behaviors and multidimensional applications of malachite green with diverse functional nucleic acids. By integrating structural mechanisms, comparative analysis, and application strategies across eight domains, it provides theoretical guidance and future perspectives for developing intelligent nucleic ...
Keren Chen +4 more
wiley +1 more source
Some physical implications of regularization ambiguities in SU(2) gauge-invariant loop quantum cosmology [PDF]
Physical Review D, 2019 The way physics of loop quantum gravity is affected by the underlying quantization ambiguities is an open question. We address this issue in the context of loop quantum cosmology using gauge-covariant fluxes.
K. Liegener, Parampreet Singh
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Loop quantum cosmology gravitational baryogenesis [PDF]
EPL (Europhysics Letters), 2016 Loop Quantum Cosmology is an appealing quantum completion of classical cosmology, which brings along various theoretical features which in many cases offer remedy or modify various classical cosmology aspects. In this paper we address the gravitational baryogenesis mechanism in the context of Loop Quantum Cosmology. As we demonstrate, when Loop Quantum
Odintsov, S. D., Oikonomou, V. K.
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