Results 21 to 30 of about 1,335,350 (260)

Fricke Topological Qubits

open access: yesQuantum Reports, 2022
We recently proposed that topological quantum computing might be based on SL(2,C) representations of the fundamental group π1(S3\K) for the complement of a link K in the three-sphere.
Michel Planat   +3 more
doaj   +1 more source

Backreaction in Cosmology

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In this review, we investigate the question of backreaction in different approaches to cosmological perturbation theory, and with a special focus on quantum theoretical aspects. By backreaction we refer here to the effects of matter field or cosmological
S. Schander, S. Schander, T. Thiemann
doaj   +1 more source

Time in quantum gravity [PDF]

open access: yes, 2012
Quantum gravity--the marriage of quantum physics with general relativity--is bound to contain deep and important lessons for the nature of physical time.
Vistarini, Tiziana   +5 more
core   +1 more source

The dynamics of cosmological scenarios inspired by quantum gravity [PDF]

open access: yes, 2006
PhDIn this thesis we study the dynamics of cosmological scenarios inspired by quantum gravity. Part I investigates novel features of the semi-classical regime of homogeneous and isotropic loop quantum cosmology.
Mulryne, David James
core   +4 more sources

The Unexpected Fractal Signatures in Fibonacci Chains

open access: yesFractal and Fractional, 2019
In this paper, a new fractal signature possessing the cardioid shape in the Mandelbrot set is presented in the Fourier space of a Fibonacci chain with two lengths, L and S, where L / S = ϕ . The corresponding pointwise dimension is 1.7.
Fang Fang, Raymond Aschheim, Klee Irwin
doaj   +1 more source

SPACETIME OR QUANTUM PARTICLES: THE ONTOLOGY OF QUANTUM GRAVITY? [PDF]

open access: yes, 1996
The domains of quantum theory and general relativity overlap in situations where quantum mechanical effects cannot be ignored. In order to deal with this overlap of theoretical domains, there has been a tendency to apply the rules of quantum field theory
Peter J. Riggs   +2 more
core   +1 more source

A proposal for a Bohmian ontology of quantum gravity [PDF]

open access: yes, 2013
The paper shows how the Bohmian approach to quantum physics can be applied to develop a clear and coherent ontology of non-perturbative quantum gravity.
Michael Esfeldy   +7 more
core   +1 more source

Quasicrystal Tilings in Three Dimensions and Their Empires

open access: yesCrystals, 2018
The projection method for constructing quasiperiodic tilings from a higher dimensional lattice provides a useful context for computing a quasicrystal’s vertex configurations, frequencies, and empires (forced tiles).
Dugan Hammock, Fang Fang, Klee Irwin
doaj   +1 more source

Quantum astrometric observables II: time delay in linearized quantum gravity [PDF]

open access: yes, 2013
A clock synchronization thought experiment is modeled by a diffeomorphism invariant "time delay" observable. In a sense, this observable probes the causal structure of the ambient Lorentzian spacetime. Thus, upon quantization, it is sensitive to the long
Sub String Theory Cosmology and ElemPart   +8 more
core   +2 more sources

Remarks on fermions in a dipole magnetic field

open access: yesJournal of High Energy Physics, 2021
This work is a continuation of our recent study of non-relativistic charged particles, confined to a sphere enclosing a magnetic dipole at its center [1]. In this sequel, we extend our computations in two significant ways.
Jeff Murugan   +2 more
doaj   +1 more source

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