Results 81 to 90 of about 536 (174)

Machine-learning emergent spacetime from linear response in future tabletop quantum gravity experiments

Machine Learning: Science and Technology
We introduce a novel interpretable neural network (NN) model designed to perform precision bulk reconstruction under the AdS/CFT correspondence. According to the correspondence, a specific condensed matter system on a ring is holographically equivalent ...
Koji Hashimoto, Koshiro Matsuo, Masaki Murata, Gakuto Ogiwara, Daichi Takeda   +4 more
doaj   +1 more source

Comments on black hole interiors and modular inclusions

SciPost Physics, 2019
We show how the traversable wormhole induced by a double-trace deformation of the thermofield double state can be understood as a modular inclusion of the algebras of exterior operators.
Ro Jefferson
doaj   +1 more source

Searching for emergent spacetime in spin glasses. An algebraic perspective

Journal of High Energy Physics
Recent work on algebraic formulations of holographic dualities in terms of large N algebras has revealed a deep connection between the properties of the associated spectral functions and the emergence of a semiclassical spacetime and causal horizons ...
Dimitris Saraidaris, Leo Shaposhnik
doaj   +1 more source

Neo-Naturalism, Conciliatory Explanations, and Spatiotemporal Surprises

Frontiers in Psychology, 2019
Some materialists believe that physics is rich enough to bridge Levine's Explanatory Gap1, while others believe that it is not. Here I promote an intermediate position holding that physics is rich enough to explain why this gap seems more intractable ...
Uziel Awret
doaj   +1 more source

The Emergence of Spacetime: What Role for Functionalism?

The British Journal for the Philosophy of Science
20 ...
Margoni, Emilia, Oriti, Daniele
openaire   +2 more sources

Why Geometry Should Not Be Quantized: A Causal-Medium Unification of Gravity and Quantum Mechanics

Quantum Reports
We revisit the premise that spacetime geometry must be quantized and show that this assumption is not physically required. Just as one does not quantize pressure or temperature, quantizing the metric treats a macroscopic continuum variable as if it were ...
Bin Li
doaj   +1 more source

Symmetric product orbifold universality and the mirage of an emergent spacetime

Journal of High Energy Physics
We study thermal two-point functions and four-point functions involving two heavy twisted operators and two light probes in symmetric product orbifolds.
Alexandre Belin, Suzanne Bintanja, Alejandra Castro, Waltraut Knop   +3 more
doaj   +1 more source

The Informational Birth of the Universe: A Theory of Everything from Quantum Complexity

Quantum Reports
We propose a unified theoretical framework grounded in a Primordial Quantum Field (PQF)—a continuous, non-local informational substrate that precedes space-time and matter. The PQF is represented by a wave functional evolving in an abstract configuration
Gastón Sanglier Contreras, Roberto Alonso González-Lezcano, Eduardo J. López Fernández   +2 more
doaj   +1 more source

Looking at bulk points in general geometries

Journal of High Energy Physics
The holographic correspondence predicts that certain strongly coupled quantum systems describe an emergent, higher-dimensional bulk spacetime in which excitations enjoy local dynamics. We consider a general holographic state dual to an asymptotically AdS
Simon Caron-Huot, Joydeep Chakravarty, Keivan Namjou   +2 more
doaj   +1 more source

Information saturation and the structural origin of low-entropy spacetime

Frontiers in Physics
The origin of the Universe’s extremely low initial gravitational entropy remains an open problem, commonly addressed by imposing the Penrose Weyl curvature condition as an additional assumption.
Wan Zheng
doaj   +1 more source