Author： Trendafilova C S Fulling S A
Publisher： IOP Publishing
ISSN： 0143-0807
Source： European Journal of Physics, Vol.32, Iss.6, 2011-11, pp. : 1663-1677
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Abstract
In analogy with the standard derivation of the Schwarzschild solution, we find all static, cylindrically symmetric solutions of the Einstein field equations for vacuum. These include not only the well-known cone solution, which is locally flat, but others in which the metric coefficients are powers of the radial coordinate and the spacetime is curved. These solutions appear in the literature, but in different forms, corresponding to different definitions of the radial coordinate. Because all the vacuum solutions are singular on the axis, we attempt to match them to 'interior' solutions with nonvanishing energy density and pressure. In addition to the well-known 'cosmic string' solution joining on to the cone, we find some numerical solutions that join on to the other exterior solutions.
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