Charged Black Cosmic String
نویسنده
چکیده
Global U(1) strings with cylindrical symmetry are studied in anti-de Sitter spacetime. According as the magnitude of negative cosmological constant, they form regular global cosmic strings, extremal black cosmic strings and charged black cosmic strings, but no curvature singularity is involved. The relationship between the topological charge of a neutral global string and the black hole charge is clarified by duality transformation. Physical relevance as straight string is briefly discussed. PACS number(s): 11.27.+d, 04.40-b, 04.70.Bw
منابع مشابه
Low-energy Interaction of a Cosmic String and an Extreme Dilatonic Black Hole Typeset Using Revt E X
The interaction of a cosmic string and a maximally charged dilatonic black hole is studied in the low-velocity limit. In particular, the string-black hole scattering at a low velocity is investigated.
متن کاملPair creation of black holes joined by cosmic strings.
We argue that production of charged black hole pairs joined by a cosmic string in the presence of a magnetic field can be analyzed using the Ernst metric. The effect of the cosmic string is to pull the black holes towards each other, opposing to the background field. An estimation of the production rate using the Euclidean action shows that the process is suppressed as compared to the formation...
متن کاملar X iv : h ep - t h / 03 10 06 8 v 2 12 J an 2 00 4 Pair creation of de Sitter black holes on a cosmic string background
We analyze the quantum process in which a cosmic string breaks in a de Sitter (dS) background, and a pair of neutral or charged black holes is produced at the ends of the string. The energy to materialize and accelerate the pair comes from the positive cosmological constant and, in addition, from the string tension. The compact saddle point solutions without conical singularities (instantons) o...
متن کاملNaked Black Holes
It is shown that there are large static black holes for which all curvature invariants are small near the event horizon, yet any object which falls in experiences enormous tidal forces outside the horizon. These black holes are charged and near extremality, and exist in a wide class of theories including string theory. The implications for cosmic censorship and the black hole information puzzle...
متن کاملLow-Energy Interaction of a Cosmic String and an Extreme Dilatonic Black Hole
The interaction of a cosmic string and a maximally charged dilatonic black hole is studied in the low-velocity limit. In particular, the string-black hole scattering at a low velocity is investigated. PACS number(s): 04.40.Nr, 04.70.Bw, 11.27.+d Typeset using REVTEX ∗e-mail: [email protected], [email protected] 1 Cosmic strings [1] are topological defects, which may have resulted from...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1997