String loops in the field of braneworld spherically symmetric black holes and naked singularities

@article{45071,
   author = {Kološ, Martin and Stuchlík, Zdeněk},
   article_location = {GB - Spojené království Velké Británie a},
   article_number = {10},
   doi = {http://dx.doi.org/10.1088/1475-7516/2012/10/008},
   keywords = {GR black holes; Modified gravity; Particle acceleration},
   language = {eng},
   issn = {1475-7516},
   journal = {Journal of Cosmology and Astroparticle Physics},
   title = {String loops in the field of braneworld spherically symmetric black holes and naked singularities},
   url = {https://iopscience.iop.org/article/10.1088/1475-7516/2012/10/008/pdf},
   year = {2012}
}

TY  - JOUR
ID  - 45071
AU  - Kološ, Martin - Stuchlík, Zdeněk
PY  - 2012
TI  - String loops in the field of braneworld spherically symmetric black holes and naked singularities
JF  - Journal of Cosmology and Astroparticle Physics
IS  - 10
SN  - 14757516
KW  - GR black holes
KW  - Modified gravity
KW  - Particle acceleration
UR  - https://iopscience.iop.org/article/10.1088/1475-7516/2012/10/008/pdf
N2  - We study motion of current-carrying string loops in the field of braneworld spherically symmetric black holes and naked singularities. The spacetime is described by the Reissner-Nordström geometry with tidal charge b reflecting the non-local tidal effects coming from the external dimension; both positive and negative values of the spacetime parameter b are considered. We restrict attention to the axisymmetric motion of string loops when the motion can be fully governed by an appropriately defined effective potential related to the energy and angular momentum of the string loops. In dependence on these two constants of the motion, the string loops can be captured, trapped, or can escape to infinity. In close vicinity of stable equilibrium points at thecentre of trapped states the motion is regular. We describe how it is transformed to chaotic motion with growing energy of the string loop. In the field of naked singularities the trapped states located off the equatorial plane of the sys
ER  - 

KOLOŠ, Martin a Zdeněk STUCHLÍK. String loops in the field of braneworld spherically symmetric black holes and naked singularities. \textit{Journal of Cosmology and Astroparticle Physics}. GB - Spojené království Velké Británie a, č.~10, 31 s. ISSN~1475-7516. doi:10.1088/1475-7516/2012/10/008. 2012.