caa a22 4500 467886725 CHVBK 20180406152736.0 cr unu---uuuuu 170328e20060101xx s 000 0 eng 10.1007/s10714-005-0213-x doi (NATIONALLICENCE)springer-10.1007/s10714-005-0213-x Stealth scalar field overflying a 2+1 black hole [Elektronische Daten] [Eloy Ayón-Beato, Cristián Martínez, Jorge Zanelli] A nontrivial scalar field configuration of vanishing energy-momentum is reported. These matter configurations have no influence on the metric and therefore they are not be "detected" gravitationally. This phenomenon occurs for a time-dependent nonminimally coupled and self-interacting scalar field on the 2+1 (BTZ) black hole geometry. We conclude that such stealth configurations exist for the static 2+1 black hole for any value of the nonminimal coupling parameter ζ≠0 with a fixed self-interaction potential U ζ(Φ). For the range 0 < ζ≤1/2 potentials are bounded from below and for the range 0 < ζ < 1/4 the stealth field falls into the black hole and is swallowed by it at an exponential rate, without any consequence for the black hole. Springer-Verlag, 2005 BTZ black hole nationallicence Nonminimal coupling nationallicence Stealth configuration nationallicence Ayón-Beato Eloy Centro de Estudios Científicos (CECS), Casilla 1469, Valdivia, Chile aut Martínez Cristián Centro de Estudios Científicos (CECS), Casilla 1469, Valdivia, Chile aut Zanelli Jorge Centro de Estudios Científicos (CECS), Casilla 1469, Valdivia, Chile aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 38/1(2006-01-01), 145-152 0001-7701 38:1<145 2006 38 10714 https://doi.org/10.1007/s10714-005-0213-x text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-005-0213-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ayón-Beato Eloy Centro de Estudios Científicos (CECS), Casilla 1469, Valdivia, Chile aut NATIONALLICENCE 700 1- Martínez Cristián Centro de Estudios Científicos (CECS), Casilla 1469, Valdivia, Chile aut NATIONALLICENCE 700 1- Zanelli Jorge Centro de Estudios Científicos (CECS), Casilla 1469, Valdivia, Chile aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 38/1(2006-01-01), 145-152 0001-7701 38:1<145 2006 38 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer