eFTC-170901

Eternally Collapsing Objects (ECOs) and Quantum Black Holes
7 September 2017

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Abstract

The Strong Principle of Equivalence (SPOE) requires Special Relativity (SR) to be locally valid for all freely falling timelike observers. Massive particle worldlines should therefore remain timelike everywhere (bundle completeness), which effectively kills all finite mass (and rotating) astrophysical black holes (BHs) from General Relativity (GR), in line with Einstein's own views. Null worldlines would otherwise form on event horizons or trapped surfaces. Gravitational collapse has been shown to create instead radiating Eternally Collapsing Objects (ECOs) or Magnetospheric Eternally Collapsing Objects (MECOs) in quasi-static equilibrium at the Eddington limit, in good agreement with astrophysical observations. Approaching the Planck scale however, Quantum Gravity (QG) effects start to kick in and the classical ECOs become semiclassical Ultra Compact ECOs (UC-ECOs). We therefore re-analyze the Leblanc-Harms theory (LHT) in the light of the replacement of BHs by ECOs. Properly interpreting the semiclassical WKB formula of euclidean GR in the classical quasi-static ECO background as the vacuum tunneling amplitude (vacuum decay) of the false ECO vacuum, one finds again qualitative agreement with the soft behavior of the Gross-Mende scattering amplitude of String Theory (ST) in the trans-Planckian region, signalling the extended (non-local/stringy/brany) nature of QG beyond the Planck scale.

Copyright © 2017 Yvan Leblanc. All rights reserved

PACS: 4.60.+n, 11.17.+y, 97.60.Lf

Cite as: Leblanc, Y., "Eternally Collapsing Objects (ECOs) and Quantum Black Holes", manuscript no. eFTC-170901 (2017). http://www.efieldtheory.com/abs/?eFTC-170901; doi:10.13140/RG.2.2.19710.08000.