Holographic Principle in Universe

A special issue of Universe (ISSN 2218-1997). This special issue belongs to the section "Gravitation".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1083

Special Issue Editors


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Guest Editor
Department of Physics, Hunan Normal University, Changsha 410081, China
Interests: gauge/gravity duality; gravitation and cosmology; black holes; quantum information in the relativistic framework

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Guest Editor
Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
Interests: gauge/gravity duality; holographic superfluids; black holes

Special Issue Information

Dear Colleagues,

Based on the well-known “spherical entropy bound”, ’t Hooft and Susskind formulated the holographic principle, which states that any quantum gravitational system in (d+1) dimensions should have a dual description in terms of a quantum field theory without gravity in one dimension less. As one of the most important developments in the history of theoretical physics, the holographic principle provides us new insights into the understanding of the real world in the past decade, such as strongly coupled condensed matter systems, quantum chromodynamics (QCD), dark energy and cosmology.

This Special Issue is to inspire new ideas and apply the holographic principle to investigate the central problems of gravity and the universe, which will include (but is not limited by) the following topics:

  • Holography and strongly coupled condensed matter systems: Anti–de Sitter/conformal field theory (AdS/CFT) correspondence, quantum phase transitions, charges and finite density, holographic superconductors and superfluids, Fermions, non-relativistic systems and hyperscaling violation;
  • Holography and QCD: AdS/QCD correspondence, confinement and chiral symmetry breaking, finite temperature and density;
  • Fluid/gravity correspondence, linear response and hydrodynamics;
  • Holographic universe, holographic dark energy (HDE) and holographic cosmology;
  • Holographic information, holographic entanglement entropy and holographic complexity.

Prof. Dr. Qiyuan Pan
Dr. Zhang-Yu Nie
Guest Editors

Manuscript Submission Information

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Keywords

  • holographic principle
  • gauge/gravity duality
  • AdS/CFT correspondence
  • AdS/QCD correspondence
  • fluid/gravity correspondence
  • holographic universe
  • holographic information
  • holographic gravity

Published Papers (1 paper)

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Research

10 pages, 366 KiB  
Communication
Gravitational Waves of Holographic QCD Phase Transition with Hyperscaling Violation
by Zhourun Zhu, Manman Sun, Rui Zhou, Jinzhong Han and Defu Hou
Universe 2024, 10(5), 224; https://doi.org/10.3390/universe10050224 - 17 May 2024
Viewed by 414
Abstract
In this paper, we study the gravitational waves of holographic QCD phase transition with hyperscaling violation. We consider an Einstein–Maxwell Dilaton background and discuss the confinement–deconfinement phase transition between thermally charged AdS and AdS black holes. We find that hyperscaling violation reduces the [...] Read more.
In this paper, we study the gravitational waves of holographic QCD phase transition with hyperscaling violation. We consider an Einstein–Maxwell Dilaton background and discuss the confinement–deconfinement phase transition between thermally charged AdS and AdS black holes. We find that hyperscaling violation reduces the phase transition temperature. In a further study, we discuss the effect of hyperscaling violation on the GW spectrum. We found that the hyperscaling violation exponent suppresses the peak frequency of the total GW spectrum. Moreover, the results of the GW spectrum may be detected by IPTA, SKA, BBO, and NANOGrav. We also find that the hyperscaling violation exponent suppresses the peak frequency of the bubble-collision spectrum h2Ωenv. Hyperscaling violation enhances the energy densities of the sound wave spectrum h2Ωsw and the MHD turbulence spectrum h2Ωturb. The total GW spectrum is dominated by the contribution of the bubble collision in runaway bubbles case. Full article
(This article belongs to the Special Issue Holographic Principle in Universe)
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