Frame dragging in the spacetime of a superconducting cosmic string

Marcus J. Thatcher; Michael J. Morgan

doi:10.1103/PhysRevD.62.103514

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Frame dragging in the spacetime of a superconducting cosmic string

Marcus J. Thatcher, Michael J. Morgan

DOI 10.1103/PhysRevD.62.103514 · Physical Review D

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Abstract

In this paper we calculate particle geodesics in the spacetime of a supermassive superconducting cosmic string (Gμ>10−3). Numerical techniques are used to compare the spacetime of a string supporting a fermionic supercurrent with a string supporting a stationary spin-0 current condensate. In both cases it is found that frame dragging leads to exotic behavior of geodesics, in which particles are trapped by the string spacetime, without the string violating the dominant energy condition. In the case of a string with a fermionic current it is also found that the string core is completely isolated from nonrelativistic particles in the “outside” universe.