Special Issue "Probing New Physics with Black Holes"

A special issue of Universe (ISSN 2218-1997).

Deadline for manuscript submissions: 31 October 2019.

Special Issue Editor

Prof. Dr. Aurélien Barrau
E-Mail Website
Guest Editor
Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS-IN2P3 53, Avenue des Martyrs, 38026 Grenoble Cedex, France
Interests: cosmology, phenomenology of quantum gravity; diffusion of particles in the galaxy; black holes; general relativity

Special Issue Information

Dear Colleagues,

Black holes are extremely well defined in general relativity. However, many mysteries remain to be understood. This Special Issue focuses on black holes as probed for new physics. They might be used at the experimental level: from gravitational waves to direct astronomy. Black holes are now being intensively observed, and could reveal unexpected phenomena. This might also be the case at the purely theoretical level: from the recovery of the Bekenstein entropy to the endpoint of the Hawking evaporation, consistency is a very strong requirement. This Issue welcomes contributions about quantum gravity, string theory, or modified gravity effects in the black hole sector.

Prof. Dr. Aurélien Barrau
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Universe is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • black holes
  • quantum gravity
  • string gravity
  • gravitational waves
  • modified gravity

Published Papers (2 papers)

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Research

Open AccessArticle
An Overview of Quasinormal Modes in Modified and Extended Gravity
Universe 2019, 5(9), 202; https://doi.org/10.3390/universe5090202 - 19 Sep 2019
Abstract
As gravitational waves are now being nearly routinely measured with interferometers, the question of using them to probe new physics becomes increasingly legitimate. In this article, we rely on a well established framework to investigate how the complex frequencies of quasinormal modes are [...] Read more.
As gravitational waves are now being nearly routinely measured with interferometers, the question of using them to probe new physics becomes increasingly legitimate. In this article, we rely on a well established framework to investigate how the complex frequencies of quasinormal modes are affected by different models. The tendencies are explicitly shown for both the pulsation and the damping rate. The goal is, at this stage, purely qualitative. This opportunity is also taken to derive the Regge-Wheeler equation for general static and spherically symmetric metrics. Full article
(This article belongs to the Special Issue Probing New Physics with Black Holes)
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Open AccessFeature PaperArticle
Searching for Quantum Black Hole Structure with the Event Horizon Telescope
Universe 2019, 5(9), 201; https://doi.org/10.3390/universe5090201 - 17 Sep 2019
Cited by 8
Abstract
The impressive images from the Event Horizon Telescope (EHT) sharpen the conflict between our observations of gravitational phenomena and the principles of quantum mechanics. Two related scenarios for reconciling quantum mechanics with the existence of black hole-like objects, with “minimal” departure from general [...] Read more.
The impressive images from the Event Horizon Telescope (EHT) sharpen the conflict between our observations of gravitational phenomena and the principles of quantum mechanics. Two related scenarios for reconciling quantum mechanics with the existence of black hole-like objects, with “minimal” departure from general relativity and local quantum field theory, have been explored; one of these could produce signatures visible to EHT observations. A specific target is temporal variability of images, with a characteristic time scale determined by the classical black hole radius. The absence of evidence for such variability in the initial observational span of seven days is not expected to strongly constrain such variability. Theoretical and observational next steps towards investigating such scenarios are outlined. Full article
(This article belongs to the Special Issue Probing New Physics with Black Holes)
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