搜索结果: 1-15 共查到“相对论与引力场 Quantum”相关记录17条 . 查询时间(0.147 秒)
One-loop quantum cosmological correction to the gravitational constant using the kink solution in de Sitter universe
One-loop correction kink energy shape invariance zeta func-tion regularization
2010/12/20
In this paper, we show the equivalence between a classical static scalar field theory and the (closed) de Sitter cosmological model whose potential represents shape invariance property.
One-loop quantum gravity repulsion in the early Universe
one-loop graviton vacuum polarization one-loop graviton self-energy
2010/12/20
Perturbative quantum gravity is used to compute the lowest order corrections to the classical
spatially flat cosmological FLRW solution (for the radiation). The presented approach is analogous to the...
Background independent condensed matter models for quantum gravity
Background independent condensed matter models quantum gravity
2010/12/20
A number of recent proposals for a quantum theory of gravity are based on the idea that spacetime geometry and gravity are derivative concepts and only apply at an approximate level. There are two fun...
Optical Lattice Hamiltonians for Relativistic Quantum Electrodynamics
Optical Lattice Hamiltonians Relativistic Quantum Electrodynamics
2011/1/14
We show how interpenetrating optical lattices containing Bose-Fermi mixtures can be constructed
to emulate the thermodynamics of quantum electrodynamics (QED). We present models of neutral
atoms on ...
Quantum-Gravity Induced Lorentz Violation and Dynamical Mass Generation
Quantum-Gravity Lorentz Violation Dynamical Mass Generation
2010/12/21
In Ref. [1] a minimal extension of (3+1)-dimensional Quantum Electrodynamics has been proposed, which includes Lorentz-Violation (LV) in the form of higher-(spatial)-derivative isotropic terms in the ...
Modified general relativity as a model for quantum gravitational collapse
Modified general relativity model quantum gravitational collapse
2010/12/20
We study a class of Hamiltonian deformations of the massless Einstein-Klein-Gordon system in spherical symmetry for which the Dirac constraint algebra closes. The system may be regarded as providing e...
Optical Lattice Hamiltonians for Relativistic Quantum Electrodynamics
Optical Lattice Hamiltonians Relativistic Quantum Electrodynamics
2010/11/24
We show how interpenetrating optical lattices containing Bose-Fermi mixtures can be constructed
to emulate the thermodynamics of quantum electrodynamics (QED). We present models of neutral
atoms on ...
The non-relativistic limit of (central-extended) Poincare group and some consequences for quantum actualization
The non-relativistic limit consequences quantum actualization
2010/10/27
The non relativistic limit of the centrally extended Poincar´e group is considered and their consequences in the Modal Hamiltonian Interpretation of Quantum Mechanics discussed [1], [2]. Through...
Three-dimensional gravity and Drinfel'd doubles: spacetimes and symmetries from quantum deformations
gravity Chern–Simons theory deformation spacetime anti-de Sitter hyperbolic cosmological constant contraction
2010/3/18
We show how the constant curvature spacetimes of 3d gravity and the associated symmetry algebras can be derived from a single quantum deformation of the 3d Lorentz algebra sl(2,R). We investigate the ...
In this article we review the foundations and the present status of loop quantum gravity. It is short and relatively non-technical, the emphasis is on the ideas, and the flavor of the techniques. In p...
On the regularization of the constraints algebra of Quantum Gravity in 2+1 dimensions with non-vanishing cosmological constant
Quantum Gravity cosmological constant 2+1 dimensions
2010/3/18
We use the mathematical framework of loop quantum gravity (LQG) to study the quantization of three dimensional (Riemannian) gravity with positive cosmological constant (Lambda>0). We show that the usu...
Non-standard loop quantum cosmology
Loop cosmology big bounce spectra of physical observables free parameter
2010/3/18
We present results concerning the nature of the cosmological big bounce(BB) transition within the loop geometry underlying loop quantum cosmology (LQC). Our canonical quantization method is an alterna...
Quantum Mechanical Effects in Gravitational Collapse
Quantum Mechanical Effects Gravitational Collapse
2010/3/17
In this thesis we investigate quantum mechanical effects to various aspects of gravitational collapse. These quantum mechanical effects are implemented in the context of the Functional Schr\"odinger f...
Quantum Black Hole in the Generalized Uncertainty Principle Framework
Quantum Black Hole Uncertainty Principle Framework
2010/3/17
In this paper we study the effects of the Generalized Uncertainty Principle (GUP) on canonical quantum gravity of black holes. Through the use of modified partition function that involves the effects ...
It has been found empirically that the Virasoro centre and 3-point functions of quantum Liouville field theory with potential e2bf(x) and external primary fields exp(af(x)) are invariant with respect ...