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  Disordered locality and Lorentz dispersion relations: an explicit model of quantum foam

Caravelli, F., & Markopoulou, F. (2012). Disordered locality and Lorentz dispersion relations: an explicit model of quantum foam. Physical Review D, 86: 024019. doi:10.1103/PhysRevD.86.024019.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-EE89-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-EE8A-8
Genre: Journal Article

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1201.3206 (Preprint), 408KB
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 Creators:
Caravelli, Francesco1, Author
Markopoulou, Fotini1, Author              
Affiliations:
1Microscopic Quantum Structure & Dynamics of Spacetime, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_67201              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: Using the framework of Quantum Graphity, we construct an explicit model of a quantum foam, a quantum spacetime with spatial non-local links. The states depend on two parameters: the minimal size of the link and their density with respect to this length. Macroscopic Lorentz invariance requires that the quantum superposition of spacetimes is suppressed by the length of these non-local links. We parametrize this suppression by the distribution of non-local links lengths in the quantum foam. We discuss the general case and then analyze two specific natural distributions. Corrections to the Lorentz dispersion relations are calculated using techniques developed in previous work.

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 Dates: 2012-01-162012-07-042012
 Publication Status: Published in print
 Pages: 23 pages, 5 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1201.3206
DOI: 10.1103/PhysRevD.86.024019
URI: http://arxiv.org/abs/1201.3206
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 86 Sequence Number: 024019 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258