KFU. Card publication. Maximum efficiency of the collisional Penrose process

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FEDERAL UNIVERSITY

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MAXIMUM EFFICIENCY OF THE COLLISIONAL PENROSE PROCESS

Form of presentation

Articles in international journals and collections

Year of publication

2016

Язык

русский

Authors, employees of KFU

Zaslavskiy Oleg Borisovich, author

Bibliographic description in the original language

O. B. Zaslavskii, Maximum efficiency of the collisional Penrose process, Phys. Rev. D 94, 064048 (2016).

Annotation

We consider the collision of two particles that move in the equatorial plane near a general stationary rotating axially symmetric extremal black hole. One of the particles is critical (with fine-tuned parameters) and moves in the outward direction. The second particle (usual, not fine-tuned) comes from infinity. We examine the efficiency η of the collisional Penrose process. There are two relevant cases here: a particle falling into a black hole after collision (i) is heavy or (ii) has a finite mass. We show that the maximum of η in case (ii) is less than or equal to that in case (i). It is argued that for superheavy particles, the bound applies to nonequatorial motion as well. As an example, we analyze collision in the Kerr-Newman background. When the bound is the same for processes (i) and (ii), η ¼ 3 for this metric. For the Kerr black hole, recent results in the literature are reproduced.

Keywords

Energy extraction, black hole, Penrose process, BSW effect

The name of the journal

PHYSICAL REVIEW D

URL

https://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.064048

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=166668&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Zaslavskiy Oleg Borisovich	ru_RU
dc.date.accessioned	2016-01-01T00:00:00Z	ru_RU
dc.date.available	2016-01-01T00:00:00Z	ru_RU
dc.date.issued	2016	ru_RU
dc.identifier.citation	O. B. Zaslavskii, Maximum efficiency of the collisional Penrose process, Phys. Rev. D 94, 064048 (2016).	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=166668&p_lang=2	ru_RU
dc.description.abstract	PHYSICAL REVIEW D	ru_RU
dc.description.abstract	We consider the collision of two particles that move in the equatorial plane near a general stationary rotating axially symmetric extremal black hole. One of the particles is critical (with fine-tuned parameters) and moves in the outward direction. The second particle (usual, not fine-tuned) comes from infinity. We examine the efficiency η of the collisional Penrose process. There are two relevant cases here: a particle falling into a black hole after collision (i) is heavy or (ii) has a finite mass. We show that the maximum of η in case (ii) is less than or equal to that in case (i). It is argued that for superheavy particles, the bound applies to nonequatorial motion as well. As an example, we analyze collision in the Kerr-Newman background. When the bound is the same for processes (i) and (ii), η ¼ 3 for this metric. For the Kerr black hole, recent results in the literature are reproduced.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Energy extraction	ru_RU
dc.subject	black hole	ru_RU
dc.subject	Penrose process	ru_RU
dc.subject	BSW effect	ru_RU
dc.title	Maximum efficiency of the collisional Penrose process	ru_RU
dc.type	Articles in international journals and collections	ru_RU