Self-Screening Hawking Atmosphere in the Presence of a Bulk Viscosity
| dc.creator | Brevik, I. | |
| dc.date | 1999-06-16 | |
| dc.date | 2000-03-16 | |
| dc.date.accessioned | 2026-07-07T12:29:09Z | |
| dc.date.available | 2026-07-07T12:29:09Z | |
| dc.description | The recent theory of 't Hooft [ Nucl. Phys. Suppl. {\bf 68}, 174 (1998)] models the black hole as a system endowed with an envelope of matter that obeys an equation of state in the form $ p=(γ-1)ρ$, and acts as a source in Einstein's equations. The present paper generalizes the 't Hooft theory so as to take into account a bulk viscosity $ζ$ in the fluid. It is shown that even a slight positive value of $ζ$ will suffice to yield complete agreement with the Hawking formula for the entropy of the black hole, if the value of the constant $γ$ takes a value that is slightly less than 4/3. The value $γ=4/3$ corresponds to a radiation fluid. | |
| dc.description | 12 pages, LaTeX, no figures, minor extensions of the discussion. To appear in PRD | |
| dc.identifier | https://arxiv.org/abs/gr-qc/9906060 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/9906060 | |
| dc.identifier | Phys.Rev.D61:124017,2000 | |
| dc.identifier | doi:10.1103/PhysRevD.61.124017 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/215780 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Self-Screening Hawking Atmosphere in the Presence of a Bulk Viscosity | |
| dc.type | text |