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A publicação pode ser exportada nos seguintes formatos: referência da APA (American Psychological Association), referência do IEEE (Institute of Electrical and Electronics Engineers), BibTeX e RIS.

Exportar Referência (APA) 
Dias, J. M., Frassino, A. M., Paccoia, V. D. & Rocha, J. V. (2023). Black hole-wormhole collisions and the emergence of islands. Physical Review D. 107 (12)
Exportar Referência (IEEE) 
J. M. Dias et al.,  "Black hole-wormhole collisions and the emergence of islands", in Physical Review D, vol. 107, no. 12, 2023
Exportar BibTeX 
@article{dias2023_1732209201431,
	author = "Dias, J. M. and Frassino, A. M. and Paccoia, V. D. and Rocha, J. V.",
	title = "Black hole-wormhole collisions and the emergence of islands",
	journal = "Physical Review D",
	year = "2023",
	volume = "107",
	number = "12",
	doi = "10.1103/PhysRevD.107.124056",
	url = "https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.124056"
}
Exportar RIS 
TY  - JOUR
TI  - Black hole-wormhole collisions and the emergence of islands
T2  - Physical Review D
VL  - 107
IS  - 12
AU  - Dias, J. M.
AU  - Frassino, A. M.
AU  - Paccoia, V. D.
AU  - Rocha, J. V.
PY  - 2023
SN  - 2470-0010
DO  - 10.1103/PhysRevD.107.124056
UR  - https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.124056
AB  - We use ray-tracing techniques to determine the evolution of the event horizon of a large black hole that “gobbles” a tiny, traversable wormhole. This calculation has physical meaning in the extreme mass ratio limit. Two setups are considered; a single-mouth wormhole connecting two otherwise independent universes, and a double-mouth zero-length wormhole within the same universe. In the first setting it turns out that, at early times, there exist two disconnected horizons, one in each universe, which then merge as the wormhole falls into the large black hole. In the second setup, we observe the appearance of an “island,” a region of spacetime that is spatially disconnected from the exterior of the black hole, but in causal contact with future null infinity. The island shrinks as time evolves and eventually disappears after sufficient time has elapsed, as compared to the distance between the two mouths. This provides a communication channel with the interior of the large black hole for a certain time interval. We compute numerically the lifetime of the island and verify that it depends linearly on the intermouth distance. Extending the analysis to wormholes with finite length, we show that the achronal averaged null energy condition prevents the appearance of islands.
ER  -