On stability behaviors of 5D M-theory black objects  

作　　者：Adil Belhaj Abderrahim Bouhouch 

机构地区：[1]Departement de Physique,Equipe des Sciences de la matiere et du rayonnement,ESMaR Faculte des Sciences,Universite Mohammed V de Rabat,Rabat,Morocco

出　　处：《Communications in Theoretical Physics》2024年第5期94-101,共8页理论物理通讯（英文版）

摘　　要：Using N=2 supergravity formalism,we investigate certain behaviors of five-dimensional black objects from the compactification of M-theory on a Calabi-Yau three-fold.The manifold has been constructed as the intersection of two homogeneous polynomials of degrees(ω+2,1)and(2,1)in a product of two weighted projective spaces given by WP^(4)(ω,1,1,1,1)×P^(1).First,we determine the allowed electric charge regions of the BPS and non BPS black holes obtained by wrapping M2-branes on appropriate two cycles in such a proposed Calabi-Yau three-fold.After that,we calculate the entropy of these solutions which takes a maximal value corresponding to ω=1 defining the ordinary projective space P^(4).For generic values of ω,we show that the non BPS states are unstable.Then,we conduct a similar study of five-dimensional black strings.Concerning the allowed magnetic charge regions of the BPS and non BPS black stringy solutions derived from M5-branes on dual divisors,we calculate the tension taking a minimal value for P^(4).By determining the recombination factor,we show that the non-BPS black string states are stable in the allowed regions in the magnetic charge space.

关 键 词：M-THEORY Calabi-Yau manifolds black holes black strings stability behaviors 

分 类 号：O41[理学—理论物理]