Stringy cosmic strings with horizons

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It is shown that any sigma model coupled to gravity with a target space having closed geodesics admits singular cosmic string solutions with event horizons. We also prove that if one makes the general assumption of boost symmetric sources, non-singular solutions of this type cannot exist. The case of the target manifold being the fundamental domain of the modular group PSL(2,¢Z) is discussed in detail.
Copyright © 1990 Published by Elsevier B.V.
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1. A. Vilenkin, Phys. Rep. 121 (1985) 263. 2. D. Harari and P. Sikivie, Phys. Rev. D37 (1988) 3438. 3. A. Cohen and D. Kaplan, Phys. Lett. 215B (1988) 67. 4. R. Gregory, Phys. Lett. 215B (1988) 663. 5. G. W. Gibbons, M. E. Ortiz and F. Ruiz Ruiz, Phys. Rev. D39 (1989) 1546. 6. E. T. Whitakker, Proc. Roy. Soc. London A149 (1935) 384. 7. A. Comtet and G. W. Gibbons, Nucl. Phys.B299 (1988) 719. 8. D. Harari and A. Polychronakos, \A global string with an event horizon", UFITF-89-18 preprint. 9. C. W. Misner, Phys. Rev. D18 (1978) 4510. 10. S. Chandrasekhar and G. S. Ranganath, Adv. Phys. 75 (1986) 567. 11. M. Kl�eman, Rep. Prog. Phys. 52 (1989) 555. 12. J. Eells and L. Lemaire, Bull. London Math. Soc. 20 (1988) 385. 13. A. Dabholkar, G. W. Gibbons, J. Harvey and F. Ruiz Ruiz, \Superstrings as solitons", University of Cambridge and Princeton University preprints. 14. A. Zamolodchikov, JETP Lett. 43 (1986) 731. 15. B. R. Greene, A. Shapere, C. Vafa and S.-T. Yau, \Stringy cosmic strings and non-compact Calabi-Yau manifolds", HUTP-89/A047 and IASSNS-HEP-89/47 preprints.