Results 141 to 150 of about 53,649 (250)

Power-series dynamics equation of fields based on geometric algebra and high-order covariant-derivative schemes

AIP Advances
Based on previous work, we explore in the context of quantum field theory and cosmology a geometric algebra (GA)-based approach to field dynamics through a multi-derivative power-series equation.
R. W. Haase
doaj   +1 more source

A review of basic results on the Bose–Einstein condensate dark matter model

Frontiers in Astronomy and Space Sciences
We review basic results on the Bose–Einstein condensate dark matter (BECDM) model. Self-gravitating BECs experience a collisionless process of gravitational cooling and violent relaxation, leading to BECDM halos with a “core-envelope” structure.
Pierre-Henri Chavanis, Pierre-Henri Chavanis   +1 more
doaj   +1 more source

Quantum Field Theory of Black Hole Perturbations with Backreaction: I General Framework

Universe
In a seminal work, Hawking showed that natural states for free quantum matter fields on classical spacetimes that solve the spherically symmetric vacuum Einstein equations are KMS states of non-vanishing temperature.
Thomas Thiemann
doaj   +1 more source

Quantum Effects on Cosmic Scales as an Alternative to Dark Matter and Dark Energy

Universe
The spin-torsion theory is a gauge theory approach to gravity that expands upon Einstein’s general relativity (GR) by incorporating the spin of microparticles. In this study, we further develop the spin-torsion theory to examine spherically symmetric and
Da-Ming Chen, Lin Wang
doaj   +1 more source

Cosmological Special Theory of Relativity, Cosmological Quantum Physics, Cosmological Uncertainty Principles, Cosmological General Theory of Relativity

Sangwha Yi
  +4 more sources

Det kosmologiska valet. Om Gud, big bang och universums existentiella mysterium

Svensk Teologisk Kvartalskrift, 2013
One of the premises of the so-called Kalām Cosmological Argument is that the universe began to exist. Modem Big Bang cosmology may seem to provide remarkable support for this hypothesis, since it estimates the universe to be 13.7 billion years old.
Martin Lembke
doaj  

Origin of cosmological density perturbations from quantum fluctuations of vacuum in General Relativity [PDF]

V. N. Lukash, E. V. Mikheeva
openalex   +1 more source

Quantum cosmology of pure connection general relativity [PDF]

, 2022
Steffen Gielen, Elliot Nash
openalex   +1 more source

ON THE RUNNING OF THE COSMOLOGICAL CONSTANT IN QUANTUM GENERAL RELATIVITY [PDF]

, 2010
B. F. L. WARD
openalex   +1 more source

The Waldrop Theory of Everything: A Finite-Information Framework for Unifying Quantum Mechanics, General Relativity, and Cosmology with a Perspective Multiverse updated 4-24

The quest for a Theory of Everything (ToE) has driven physics for over a century, aiming to unify quantum mechanics (QM) and general relativity (GR) while explaining cosmological phenomena. The Waldrop ToE achieves this through a finite-information simulation framework, incorporating scale-dependent dynamics, chaos-control duality, and information ...
openaire   +1 more source