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Quantum dust cores of black holes

Roberto Casadio
(
- Bologna U. and
- INFN, Bologna
)

Apr 13, 2023

9 pages

Published in:

Phys.Lett.B 843 (2023) 138055

Published: Jun 30, 2023

e-Print:

2304.06816 [gr-qc]

DOI:

10.1016/j.physletb.2023.138055 (publication)

View in:

ADS Abstract Service

reference search13 citations

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Abstract: (Elsevier B.V.)

We describe the ground state for a gravitationally collapsed ball of dust as the direct product of wavefunctions for dust particles distributed over an arbitrary number of nested layers. This allows us to estimate the expectation value of the global radius as well as the effective energy density and pressures for the dust core of quantum black holes. In particular, the size of the quantum core does not depend on the number of layers and the mass function is shown to grow linearly with the areal radius up to the outermost layer.

Note:

9 pages, 2 figures. Version to appear in PLB

black hole: quantum
gravitation: collapse
energy: density
pressure
ground state
wave function
black hole: mass

References(28)

Figures(2)

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