Results 11 to 20 of about 536 (174)

Electron currents from gradual heating in tilted Dirac cone materials

open access: yesSciPost Physics Core, 2023
Materials hosting tilted Dirac/Weyl fermions provide an emergent spacetime structure for the solid state physics. They admit a geometric description in terms of an effective spacetime metric.
Ahmadreza Moradpouri, Mahdi Torabian, Seyed Akbar Jafari
doaj   +1 more source

Spacetime-emergent ring toward tabletop quantum gravity experiments

open access: yesPhysical Review Research, 2023
We propose a way to discover, in tabletop experiments, spacetime-emergent materials, that is, materials holographically dual to higher-dimensional quantum gravity systems under the AdS/CFT.
Koji Hashimoto   +3 more
doaj   +1 more source

The (A)temporal Emergence of Spacetime [PDF]

open access: yesPhilosophy of Science, 2018
AbstractThis article examines two cosmological models of quantum gravity (from string theory and loop quantum gravity) to investigate the foundational and conceptual issues arising from quantum treatments of the big bang. While the classical singularity is erased, the quantum evolution that replaces it may not correspond to classical spacetime: it may ...
Huggett, Nick, Wüthrich, Christian
openaire   +3 more sources

Emergent Gravity Simulations for Schwarzschild–de Sitter Scenarios

open access: yesFoundations, 2023
Building on previous work that considered gravity to emerge from the collective behaviour of discrete, pre-geometric spacetime constituents, this work identifies these constituents with gravitons and rewrites their effective gravity-inducing interaction ...
Arno Keppens
doaj   +1 more source

Emergent metric space-time from matrix theory

open access: yesJournal of High Energy Physics, 2022
The IKKT matrix model yields an emergent space-time. We further develop these ideas and give a proposal for an emergent metric. Based on previous numerical studies of this model, we provide evidence that the emergent space-time is continuous and infinite
Suddhasattwa Brahma   +2 more
doaj   +1 more source

Emergent spacetime and holographic CFTs [PDF]

open access: yesJournal of High Energy Physics, 2012
Abstract We discuss universal properties of conformal field theories with holographic duals. A central feature of these theories is the existence of a low-lying sector of operators whose correlators factorize. We demonstrate that factorization can only hold in the large central charge limit.
El-Showk, Sheer, Papadodimas, Kyriakos
openaire   +2 more sources

From Quantum Codes to Gravity: A Journey of Gravitizing Quantum Mechanics

open access: yesUniverse, 2021
In this note, I review a recent approach to quantum gravity that “gravitizes” quantum mechanics by emerging geometry and gravity from complex quantum states.
Chun-Jun Cao
doaj   +1 more source

Naturalness in an Emergent Analogue Spacetime [PDF]

open access: yesPhysical Review Letters, 2006
Effective field theories (EFTs) have been widely used as a framework in order to place constraints on the Planck suppressed Lorentz violations predicted by various models of quantum gravity. There are, however, technical problems in the EFT framework when it comes to ensuring that small Lorentz violations remain small--this is the essence of the ...
Stefano, Liberati   +2 more
openaire   +2 more sources

Spacetime as a Complex Network and the Cosmological Constant Problem

open access: yesUniverse, 2023
We propose a promising model of discrete spacetime based on nonassociative geometry and complex networks. Our approach treats space as a simplicial 3-complex (or complex network), built from “atoms” of spacetime and entangled states forming n-dimensional
Alexander Nesterov
doaj   +1 more source

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