Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole

We study a quantum-corrected Schwarzschild black hole proposed recently in Loop Quantum Gravity. Prompted by the fact that corrections to the innermost stable circular orbit of Schwarzschild diverge, we investigate time-like and null radial geodesics. Massive particles moving radially outwards are c...

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Main Authors: Valerio Faraoni, Andrea Giusti
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/12/8/1264
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author Valerio Faraoni
Andrea Giusti
author_facet Valerio Faraoni
Andrea Giusti
author_sort Valerio Faraoni
collection DOAJ
description We study a quantum-corrected Schwarzschild black hole proposed recently in Loop Quantum Gravity. Prompted by the fact that corrections to the innermost stable circular orbit of Schwarzschild diverge, we investigate time-like and null radial geodesics. Massive particles moving radially outwards are confined, while photons make it to infinity with infinite redshift. This unsettling physics, which deviates radically from both Schwarzschild (near the horizon) and Minkowski (at infinity) is due to repulsion by the negative quantum energy density that makes the quasilocal mass vanish as one approaches spatial infinity.
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spelling doaj.art-5771e5cec50b4f8bb9a5a29a8df600302023-11-20T08:44:39ZengMDPI AGSymmetry2073-89942020-08-01128126410.3390/sym12081264Unsettling Physics in the Quantum-Corrected Schwarzschild Black HoleValerio Faraoni0Andrea Giusti1Department of Physics & Astronomy, Bishop’s University, 2600 College Street, Sherbrooke, QC J1M 1Z7, CanadaDepartment of Physics & Astronomy, Bishop’s University, 2600 College Street, Sherbrooke, QC J1M 1Z7, CanadaWe study a quantum-corrected Schwarzschild black hole proposed recently in Loop Quantum Gravity. Prompted by the fact that corrections to the innermost stable circular orbit of Schwarzschild diverge, we investigate time-like and null radial geodesics. Massive particles moving radially outwards are confined, while photons make it to infinity with infinite redshift. This unsettling physics, which deviates radically from both Schwarzschild (near the horizon) and Minkowski (at infinity) is due to repulsion by the negative quantum energy density that makes the quasilocal mass vanish as one approaches spatial infinity.https://www.mdpi.com/2073-8994/12/8/1264quantum-corrected black holeLoop Quantum Gravitypseudo-Newtonian potential
spellingShingle Valerio Faraoni
Andrea Giusti
Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole
Symmetry
quantum-corrected black hole
Loop Quantum Gravity
pseudo-Newtonian potential
title Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole
title_full Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole
title_fullStr Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole
title_full_unstemmed Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole
title_short Unsettling Physics in the Quantum-Corrected Schwarzschild Black Hole
title_sort unsettling physics in the quantum corrected schwarzschild black hole
topic quantum-corrected black hole
Loop Quantum Gravity
pseudo-Newtonian potential
url https://www.mdpi.com/2073-8994/12/8/1264
work_keys_str_mv AT valeriofaraoni unsettlingphysicsinthequantumcorrectedschwarzschildblackhole
AT andreagiusti unsettlingphysicsinthequantumcorrectedschwarzschildblackhole