Results 101 to 110 of about 2,110,870 (239)

The Code-Theoretic Axiom: The Third Ontology [PDF]

open access: yesReports in Advances of Physical Sciences, 2019
A logical physical ontology is code theory, wherein reality is neither deterministic nor random. In light of Conway and Kochen’s free will theorem [The free will theorem, Found. Phys. 36(10) (2006) 1441–1473] and strong free will theorem [The strong free
Klee Irwin
doaj   +1 more source

An Open Scattering Model in Polymerized Quantum Mechanics

open access: yesMathematics, 2022
We derive a quantum master equation in the context of a polymerized open quantum mechanical system for the scattering of a Brownian particle in an ideal gas environment.
Kristina Giesel, Michael Kobler
doaj   +1 more source

Quantum Geometry and its Implications for Black Holes [PDF]

open access: yes, 2006
General relativity successfully describes space-times at scales that we can observe and probe today, but it cannot be complete as a consequence of singularity theorems.
Arnowitt R.   +7 more
core   +2 more sources

Nonlinear Quantum Gravity [PDF]

open access: yes, 2012
Nonlinear quantum mechanics at the Planck scale can produce nonlocal effects contributing to resolution of singularities, to cosmic acceleration, and modified black-hole dynamics, while avoiding the usual causality issues.
openaire   +4 more sources

NONCOMMUTATIVE QUANTUM GRAVITY [PDF]

open access: yesModern Physics Letters A, 2013
We discuss the BRST and anti-BRST symmetries for perturbative quantum gravity in noncommutative spacetime. In this noncommutative perturbative quantum gravity the sum of the classical Lagrangian density with a gauge fixing term and a ghost term is shown to be invariant to the noncommutative BRST and the noncommutative anti-BRST transformations.
openaire   +2 more sources

Spontaneous compactification in 2D induced quantum gravity

open access: yes, 1992
Spontaneous compactification ---on a $R^1\times S^1$ background--- in 2D induced quantum gravity (considered as a toy model for more fundamental quantum gravity) is analyzed in the gauge-independent effective action formalism.
Elizalde, E., Odintsov, S. D.
core   +2 more sources

Tabletop experiments for quantum gravity: a user’s manual [PDF]

open access: yesClassical and quantum gravity, 2018
Recent advances in cooling, control, and measurement of mechanical systems in the quantum regime have opened the possibility of the first direct observation of quantum gravity, at scales achievable in experiments.
D. Carney, P. Stamp, Jacob M. Taylor
semanticscholar   +1 more source

Quantum Imprints on CMBR

open access: yesUniverse, 2023
Quantum cosmology aims to develop a quantum theory of the universe, attempting to answer open questions of physical cosmology, mainly related to the early epochs of the universe. Such a theory aims to unite relativity theory and quantum theory. Here, the
Shreya Banerjee
doaj   +1 more source

Quantum isolated horizons and black hole entropy

open access: yes, 2012
We give a short introduction to the approaches currently used to describe black holes in loop quantum gravity. We will concentrate on the classical issues related to the modeling of black holes as isolated horizons, give a short discussion of their ...
G., J. Fernando Barbero   +2 more
core   +1 more source

Emergence of Weak Coupling at Large Distance in Quantum Gravity. [PDF]

open access: yesPhysical Review Letters, 2018
The Ooguri-Vafa swampland conjectures claim that in any consistent theory of quantum gravity, when venturing to large distances in scalar field space, a tower of particles will become light at a rate that is exponential in the field-space distance.
B. Heidenreich, M. Reece, Tom Rudelius
semanticscholar   +1 more source

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