Results 151 to 160 of about 32,973 (309)

From the Fibonacci Icosagrid to E8 (Part I): The Fibonacci Icosagrid, an H3 Quasicrystal

open access: yesCrystals
This paper introduces a new kind of quasicrystal by Fibonacci-spacing a multigrid of a certain symmetry, like H2, H3, T3, etc. Multigrids of a certain symmetry can be used to generate quasicrystals, but multigrid vertices are not a quasicrystal due to ...
Fang Fang, Klee Irwin
doaj   +1 more source

Non-perturbative 3d Lorentzian quantum gravity

open access: yes, 2001
We have recently introduced a discrete model of Lorentzian quantum gravity, given as a regularized non-perturbative state sum over simplicial Lorentzian spacetimes, each possessing a uniqueWick rotation to Euclidean signature.
Ambj¢rn, J.   +11 more
core  

(A)Symmetric complexity and the Quantum Mpemba Effect

open access: yesJournal of High Energy Physics
The Quantum Mpemba Effect (QME) — the counter-intuitive phenomenon where states further from equilibrium can relax faster than those closer to it — challenges standard expectations of quantum thermalization.
Cameron Beetar   +2 more
doaj   +1 more source

Complexity and operator growth in holographic 6d SCFTs

open access: yesNuclear Physics B
We study Krylov (spread) complexity in strongly coupled six–dimensional N=(1,0) superconformal field theories with holographic duals in massive type IIA supergravity.
Ali Fatemiabhari   +2 more
doaj   +1 more source

Gravitational Lensing Effects from Models of Loop Quantum Gravity with Rigorous Quantum Parameters

open access: yes
Many previous works have studied gravitational lensing effects from Loop Quantum Gravity. So far, gravitational lensing effects from Loop Quantum Gravity have only been studied by choosing large quantum parameters much larger than the Planck scale ...
Haida Li, Xiangdong Zhang
core   +1 more source

String Theory – Nomological Unification and the Epicycles of the Quantum Field Theory Paradigm [PDF]

open access: yes, 2011
String Theory is the result of the conjunction of three conceptually independent elements: (i) the metaphysical idea of a nomological unity of the forces, (ii) the model-theoretical paradigm of Quantum Field Theory, and (iii) the conflict resulting from ...
Hedrich, Reiner
core  

Are we at the dawn of quantum-gravity phenomenology?

open access: yes, 1999
A handful of recent papers has been devoted to proposals of experiments capable of testing some candidate quantum-gravity phenomena. These lecture notes emphasize those aspects that are most relevant to the questions that come to mind when one is exposed
Amelino-Camelia, Giovanni
core   +1 more source

Realization of a complete Stern-Gerlach interferometer: Toward a test of quantum gravity. [PDF]

open access: yesSci Adv, 2021
Margalit Y   +10 more
europepmc   +1 more source

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