Results 201 to 210 of about 53,649 (250)

Initial conditions of pre-inflation with Hilltop potential in loop quantum cosmology

General Relativity and Gravitation, 2021
In this paper, we investigate the dynamics of pre-inflation with Hilltop potential in the framework of loop quantum cosmology. The initial conditions of inflaton field at the quantum bounce is categorized into two classes, first one is dominated by ...
M. Shahalam, K. Yesmakhanova, Zhanar Umurzakhova   +2 more
semanticscholar   +1 more source

Extra-Dimensional de Broglie-Bohm Quantum Cosmology

General Relativity and Gravitation
In this work, we explore the de Broglie-Bohm quantum cosmology for a stiff matter, p=ρ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{
F. A. P. Alves-J'unior, A. S. Lemos, F. A. Brito   +2 more
semanticscholar   +1 more source

Revisiting Unimodular Quantum Cosmology

Gravitation & Cosmology
Quantization of unimodular gravity in minisuperspace leads to a time evolution of states generated by the Hamiltonian, as in usual quantum mechanics. We revisit the analysis made by Unruh, extending it to phantom scalar fields.
J. C. Fabris, L. F. Guimaraes, Nelson Pinto Neto, M. Daouda   +3 more
semanticscholar   +1 more source

Nisti-Hasti Framework — Unifying General Relativity, Quantum Mechanics, and Cosmology

The Nisti-Hasti framework introduces two fundamental components—Nisti (dynamic quantum vacuum fluctuations) and Hasti (conversion of matter into spacetime geometry)—to unify four major problems in modern physics (dark energy, dark matter, the black hole information paradox, and quantum gravity) into a single mathematical structure.
Bozorg amin, Bozorg amin
openaire   +1 more source

Addressing the so called quantum/classical “divide” in gravitational contexts, and its implications in cosmology

General Relativity and Gravitation
The manner in which one approaches the interface between gravitation and quantum theory is influenced by one’s posture regarding quantum mechanics and the issues that revolve about its interpretational problems.
Rosa-Laura Lechuga-Solis, D. Sudarsky
semanticscholar   +1 more source

Cosmology in loop quantum gravity: symmetry reduction preserving gauge degrees of freedom

Classical and quantum gravity
In this manuscript, we address the issue of the loss of SU(2) internal symmetry in loop quantum cosmology and its relationship with loop quantum gravity.
Matteo Bruno
semanticscholar   +1 more source

Quantum gravity, hydrodynamics and emergent cosmology: a collection of perspectives

General Relativity and Gravitation
This collection of perspective pieces captures recent advancements and reflections from a dynamic research community dedicated to bridging quantum gravity, hydrodynamics, and emergent cosmology.
J. B. Achour, Dario Benedetti, M. Bojowald, R. Brandenberger, Salvatore Butera, Renata Ferrero, Flaminia Giacomini, Kristina Giesel, Christophe Goeller, Tobias Haas, Philipp A. Hohn, Joshua Kirklin, Luca Marchetti, D. Oriti, R. Percacci, Antonio D. Pereira, A. G. A. Pithis, M. Sakellariadou, S. Steinhaus, Johannes Thurigen   +19 more
semanticscholar   +1 more source

A Unified Theory Integrating Quantum Mechanics, General Relativity, and Cosmology

A Unified Theory Integrating Quantum Mechanics, General Relativity, and Cosmology This paper presents a novel theoretical framework that unifies quantum mechanics, general relativity, and cosmology under a single governing equation: U=∫ρ(⟨s∣t⟩)Ψ(⟨t1∣t2⟩)E(f,A) dXU = \int \rho(\langle s|t \rangle) \Psi(\langle t_1|t_2 \rangle) E(f, A) \, dXU=∫ρ(⟨s∣t ...
openaire   +1 more source

The Omnidimensional Quantum-Cosmological Theory: Unifying Quantum Mechanics, General Relativity and Consciousness Through Operator Manifolds

10D operator manifold unifying QM, GR, and consciousness ...
openaire   +1 more source

Umbral Field Theory: A Unified Framework for Quantum Mechanics, General Relativity, and Cosmology

Umbral Field Theory (UFT) is a new theoretical framework that unifies quantum mechanics, general relativity, and cosmology through a scalar field (φ), ultra-light vector bosons (“umbrons” A⃗μ), and Standard Model fermions, embedded within a 5-dimensional Randall–Sundrum geometry.
openaire   +1 more source