Results 161 to 170 of about 32,973 (309)
The dynamics of cosmological scenarios inspired by quantum gravity
, 2006 PhDIn this thesis we study the dynamics of cosmological scenarios inspired by quantum gravity. Part I investigates novel features of the semi-classical regime of homogeneous and isotropic loop quantum cosmology.
Mulryne, David James
core
The Quantum Regularization of Singular Black-Hole Solutions in Covariant Quantum Gravity. [PDF]
Entropy (Basel), 2021 Tessarotto M, Cremaschini C.
europepmc +1 more source
Further results on geometric operators in quantum gravity
, 1996 We investigate some properties of geometric operators in canonical quantum gravity in the connection approach `a la Ashtekar, which are associated with volume, area and length of spatial regions.
Loll, Renate, Loll, R.
core +1 more source
Journal of Applied Polymer Science, EarlyView.This review highlights the synthesis of chitosan nanoparticles from natural sources, the thorough characterization of them, and use of microscopic and spectroscopic methods. It emphasizes that it has some indispensable properties such as being non‐toxic, antimicrobial, and capable of controlled drug release.
Mariam Sohail Mansoor +6 more
wiley +1 more source
Renormalization group flow of f(R)-gravity
, 2008 We use the functional renormalization group equation for quantum gravity to construct a non-perturbative flow equation for modified gravity theories of the form $S = \int d^dx \sqrt{g} f(R)$.
Afd Theoretical Physics (ITF) +4 more
core
Berichte zur Wissenschaftsgeschichte, EarlyView.Since late 2021, serious allegations have been made against physicist Erwin Schrödinger, ranging from pedophilia to serial sexual abuse. These accusations have significantly tarnished the Nobel Prize winner's public reputation. The ongoing debate has repeatedly raised the question of whether, and to what extent, these grave allegations are justified ...
Magdalena Gronau, Martin Gronau
wiley +1 more source
Non-simple conformal loop ensembles on Liouville quantum gravity and the law of CLE percolation interfaces. [PDF]
Probab Theory Relat Fields, 2021 Miller J, Sheffield S, Werner W.
europepmc +1 more source
Business Strategy and the Environment, EarlyView.ABSTRACT Drawing upon ecological modernization theory as the analytical framework, this study employs macro‐level longitudinal tracking data covering China's major regions as research samples. It measures the green and low‐carbon development (GLCD) of manufacturing from the four dimensions—“carbon reduction, pollution mitigation, ecological expansion ...
Deng Wang +4 more
wiley +1 more source
Deep Learning Spinfoam Vertex Amplitudes: The Euclidean Barrett–Crane Model
UniverseSpinfoam theories propose a well-defined path-integral formulation for quantum gravity, and it is hoped that they will provide the dynamics of loop quantum gravity. However, it is computationally hard to calculate spinfoam amplitudes.
Hanno Sahlmann, Waleed Sherif
doaj +1 more source
Journal of High Energy PhysicsAbstract We present the manifestly covariant canonical operator formalism of a Weyl invariant (or equivalently, a locally scale invariant) gravity whose classical action consists of the well-known conformal gravity and Weyl invariant scalar-tensor gravity, on the basis of the Becchi-Rouet-Stora-Tyupin (BRST) formalism.
Ichiro Oda, Misaki Ohta
openaire +3 more sources