20.500.12556/DKUM-66470 Vacuum polarization of STU black holes and their subtracted geometry limit We study the vacuum polarization of a massless minimally coupled scalar field at the horizon of four-charge STU black holes. We compare the results for the standard asymptotically flat black holes and for the black holes obtained in the "subtracted limit", both in the general static case and at the horizon pole for the general rotating case. The original and the subtracted results are identical only in the BPS limit, and have opposite sign in the extremal Kerr limit. We also compute the vacuum polarization on the static solutions that interpolate between both the original and the subtracted case through a solution-generating transformation and show that the vacuum polarization stays positive throughout the interpolating solution. In the appendix we provide a closed-form solution for the Green's function on general (static or rotating) subtracted black hole geometries. black holes supergravity string theory conformal field models string duality črne luknje supergravitacija teorija superstrun modeli konformnega polja dualnost superstrun true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-06-27 13:20:57 2017-06-27 13:21:51 2022-07-11 03:07:09 2019-07-11 15:48:36 2015 0 0 str. 1-19 št. 1 Letn. 2015 jan. 2015 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1029-8479 530.122.3 1314148 86136833 10.1007/JHEP01(2015)130 1029-8479 URN:SI:UM:DK:PDKPB9DF Journal_of_High_Energy_Physics_2015_Cvetic_et_al._Vacuum_polarization_of_STU_black_holes_and_their_subtracted_geometry_limit.pdf Journal_of_High_Energy_Physics_2015_Cvetic_et_al._Vacuum_polarization_of_STU_black_holes_and_their_subtracted_geometry_limit.pdf 1 26F7ECA3D52D4357E30712AAD9F85C4C 849f2308b7f15d3d93fc010c20da7ec89305f507628326cb66b3d54a6f2d4473 4f12aa80-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=113211 http://link.springer.com/10.1007/JHEP01(2015)130 1 https://dk.um.si/Dokument.php?lang=slv&id=113210 Univerza v Mariboru 0 0 0