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Emergent Spacetime [PDF]

The Quantum Structure of Space and Time, 2007
We summarize the arguments that space and time are likely to be emergent notions; i.e. they are not present in the fundamental formulation of the theory, but appear as approximate macroscopic concepts. Along the way we briefly review certain topics.
Nathan Seiberg
exaly   +3 more sources

Emergent spacetime & quantum entanglement in matrix theory [PDF]

Journal of High Energy Physics, 2017
In the context of the Bank-Fishler-Shenker-Susskind Matrix theory, we analyze a spherical membrane in light-cone M theory along with two asymptotically distant probes.
Vatche Sahakian, Yossathorn Tawabutr, Cynthia Yan   +2 more
doaj   +4 more sources

Gravitational collapse for the K-essence emergent Vaidya spacetime

European Physical Journal C, 2020
In this paper, we study the gravitational collapse in the k-essence emergent gravity using a generalized Vaidya-type metric as a background. We also analyze the cosmic censorship hypothesis for this system.
Goutam Manna
exaly   +3 more sources

Emergent Spacetime and Cosmic Inflation

Universe
We present a novel background-independent framework for cosmic inflation, starting with a matrix model. In this framework, inflation is portrayed as a dynamic process responsible for the generation of both space and time.
Hyun Seok Yang, Yang Hyun Seok
exaly   +3 more sources

Emergent spacetime in stochastically evolving dimensions

Physics Letters B, 2014
Changing the dimensionality of the space–time at the smallest and largest distances has manifold theoretical advantages. If the space is lower dimensional in the high energy regime, then there are no ultraviolet divergencies in field theories, it is ...
Niayesh Afshordi, Dejan Stojkovic
doaj   +3 more sources

From Quantum Time to Manifestly Covariant QFT: On the Need for a Quantum-Action-Based Quantization [PDF]

Entropy
In quantum time (QT) schemes, time is promoted to a degree of freedom, allowing Lorentz covariance to be made explicit for single particles. We ask whether this can be lifted to QFT so that Lorentz covariance becomes manifest at the Hilbert-space level ...
Nahuel L. Diaz
doaj   +2 more sources

Emergent spacetime and the origin of gravity [PDF]

Journal of High Energy Physics, 2009
We present an exposition on the geometrization of the electromagnetic force. We show that, in noncommutative (NC) spacetime, there always exists a coordinate transformation to locally eliminate the electromagnetic force, which is precisely the Darboux theorem in symplectic geometry.
exaly   +4 more sources

Topology change of spacetime and resolution of spacetime singularity in emergent gravity [PDF]

Physical Review D, 2013
6 pages with two columns; expanded version to appear in Phys.
Hyun Seok Yang, Raju Roychowdhury
exaly   +3 more sources

Process and Space [PDF]

Entropy
From the perspective of process, time may be viewed as that which marks the occurrence of change, as previously proposed by this author. In contrast, spatial distinctions may be viewed as enabling the individuation and counting of events generated by ...
William Sulis
doaj   +2 more sources

Emergent geometry from quantized spacetime [PDF]

Physical Review D, 2010
We examine the picture of emergent geometry arising from a mass-deformed matrix model. Because of the mass-deformation, a vacuum geometry turns out to be a constant curvature spacetime such as d-dimensional sphere and (anti-)de Sitter spaces. We show that the mass-deformed matrix model giving rise to the constant curvature spacetime can be derived from
Hyun Seok Yang, M Sivakumar
exaly   +3 more sources