Near-horizon properties of trajectories with finite force relevant for Bañados-Silk-West effect
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10495262" target="_blank" >RIV/00216208:11320/24:10495262 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9NQwEeMonq" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9NQwEeMonq</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.110.064016" target="_blank" >10.1103/PhysRevD.110.064016</a>
Alternative languages
Result language
angličtina
Original language name
Near-horizon properties of trajectories with finite force relevant for Bañados-Silk-West effect
Original language description
According to the Ba & ntilde;ados-Silk-West (BSW) effect, two particles moving toward a black hole can collide near the horizon with an unbounded energy in the center-of-mass frame. This requires one of the particles to have fine-tuned parameters in such a way that the time component of generalized momentum is zero X = 0. Thus the existence of such trajectories is a necessary condition for the BSW effect. However, it is insufficient since the forward-in-time condition requires X > 0 outside the horizon. We examine this condition for different types of particles and horizons and find configurations for which the BSW effect is possible. In doing so, we take into account a finite force of unspecified nature exerted on particles. It includes relationships between numbers characterizing the rate with which four-velocity, acceleration, and metric functions change near the horizon. For some aforementioned relations, parameters of a system control the sign of X; in other cases they are required for X to be a real quantity. In the simplest case of free particles the BSW effect for the Kerr or Kerr-Newman black hole is impossible if a fine-tuned particle has a negative energy, so in this sense a combination of the Penrose process and the BSW effect is forbidden.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
110
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
064016
UT code for WoS article
001381673800009
EID of the result in the Scopus database
2-s2.0-85203585642