Results 91 to 100 of about 268,972 (205)

Space-time curvature of general relativity and energy density of a three-dimensional quantum vacuum

, 2015
A three-dimensional quantum vacuum condensate is introduced as a funda-mental medium from which gravity emerges in a geometro-hydrodynamic lim-it. In this approach, the curvature of space-time characteristic of general rela-tivity is obtained as a ...
D. Fiscaletti, A. Šorli
semanticscholar   +1 more source

Minisuperspace cosmology in extended geometric trinity of gravity

European Physical Journal C: Particles and Fields
We investigate Extended Geometric Trinity of Gravity at both classical and quantum cosmological levels using the minisuperspace approach. Adopting Noether symmetries to select viable models, we examine metric-affine theories of gravity, in particular the
Emmanuele Battista, Salvatore Capozziello, Stefano Pastore   +2 more
doaj   +1 more source

On the Choice of Variable for Quantization of Conformal GR

Universe
The possibility of using spin connection components as basic quantization variables of a conformal version of general relativity is studied. The considered model contains gravitational degrees of freedom and a scalar dilaton field.
A. B. Arbuzov, A. A. Nikitenko
doaj   +1 more source

Quantum Mechanics by General Relativity

Applied Physics Research, 2019
In the framework of General Relativity we explain the creation of all particles, ordinary and anti, in two chiral directions, with multiple generations, as well as electromagnetism and the strong nuclear force. Quantum mechanics is well-known to have its foundational problems revolving around the wave-particle duality, which actually has an exact ...
openaire   +2 more sources

Time dilation in quantum systems and decoherence

New Journal of Physics, 2017
Both quantum mechanics and general relativity are based on principles that defy our daily intuitions, such as time dilation, quantum interference and entanglement.
Igor Pikovski, Magdalena Zych, Fabio Costa, Časlav Brukner   +3 more
doaj   +1 more source

On the Wavefunction Collapse

Quanta, 2016
Wavefunction collapse is usually seen as a discontinuous violation of the unitary evolution of a quantum system, caused by the observation. Moreover, the collapse appears to be nonlocal in a sense which seems at odds with general relativity.
Ovidiu Cristinel Stoica
doaj   +1 more source

Many Phases in a Hairy Box in Three Dimensions

Universe
In this paper, I investigate gravitational thermodynamics of the Einstein–Maxwell–scalar system in three dimensions without a cosmological constant. In a previous work by Krishnan, Shekhar, and Bala Subramanian, it was argued that this system has no BH ...
Shoichiro Miyashita
doaj   +1 more source

Modern Canonical Quantum General Relativity [PDF]

, 2007
Modern physics rests on two fundamental building blocks: general relativity and quantum theory. General relativity is a geometric interpretation of gravity while quantum theory governs the microscopic behaviour of matter. Since matter is described by quantum theory which in turn couples to geometry, we need a quantum theory of gravity.
openaire   +1 more source

About the Absolute Analogy Between Electromagnetism and Gravitomagnetism

Reports in Advances of Physical Sciences
This study proposes a new formulation of gravitational field dynamics using Maxwell-like equations, thus offering an alternative to Einstein’s general theory of relativity.
Borros Arneth
doaj   +1 more source

Rotating effects on the scalar field in the cosmic string spacetime, in the spacetime with space-like dislocation and in the spacetime with a spiral dislocation

European Physical Journal C: Particles and Fields, 2018
In the interface between general relativity and relativistic quantum mechanics, we analyse rotating effects on the scalar field subject to a hard-wall confining potential.
R. L. L. Vitória, K. Bakke
doaj   +1 more source