Results 101 to 110 of about 51,631 (191)

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

Batalin–Fradkin–Vilkovisky quantization of Einstein gravity with off-diagonal solutions encoding Hořava type generating functions

European Physical Journal C: Particles and Fields
We develop and apply the Batalin–Fradkin–Vilkovisky (BFV) formalism for the covariant quantization of generic off-diagonal solutions of the Einstein equations in general relativity (GR).
Elşen Veli Veliev, Sergiu I. Vacaru
doaj   +1 more source

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  

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

Modified Gravity: From Black Holes Entropy to Current Cosmology, 4th Edition. [PDF]

Entropy (Basel)
Bamba K.
europepmc   +1 more source

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

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

Entropy of a Quasi-de Sitter Spacetime and the Role of Specific Heat. [PDF]

Entropy (Basel)
Luongo O, Azizinia M, Boshkayev K.
europepmc   +1 more source

Quantum Gravity Spacetime: Universe vs. Multiverse. [PDF]

Entropy (Basel)
Tessarotto M, Cremaschini C.
europepmc   +1 more source

Minimum Spacetime Length and the Thermodynamics of Spacetime. [PDF]

Entropy (Basel)
Rossi V, Cacciatori SL, Pesci A.
europepmc   +1 more source