- Physical Review Journals
All JournalsPhysics Magazine
Access Provided by Xinjiang University

Physical Review D

Export citation

Export citation

Choose format for download:

Download Citation
  • Access by Xinjiang University

Grand unified gauge-boson condensation on the cosmic string

G. Dvali

S. M. Mahajan

  • Institute of Physics, Georgian Academy of Sciences, Tbilisi, Georgian Republic, 380079 U.S.S.R.
  • International Centre for Theoretical Physics, Trieste, Italy

  • International Centre for Thoeretical Physics, Trieste, Italy
  • Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712

PDF

Phys. Rev. D 45, 665 – Published 15 January, 1992

DOI: https://doi.org/10.1103/PhysRevD.45.665

Abstract

Expectation values of grand unified Higgs scalars can be strongly changed in the core of the cosmic string. We show that in certain cases such unusual Higgs structures imply the existence of nonzero classical gauge currents in the lowest-energy state of the system. This automatically triggers the condensation of the grand unified gauge bosons interacting linearly with this current, which could be either trivial or nontrivial under the Ũ(1) subgroup responsible for the string. For the former, the gauge-boson condensate accumulated in the core of the defect is strictly radial, while in the latter case it also acquires an azimuthal (and magnetic) component. Existence of such types of condensates on the boundaries of the expanding vacuum bubbles (which arise in high-temperature phase transitions) can play an important role in creating the present baryon asymmetry.

View figure in article

References (16)

  1. H. B. Nielsen and P. Olesen, Nucl. Phys. B61, 45 (1973).
  2. A. Vilenkin, Phys. Rep. 121, 263 (1985).
  3. E. Witten, Nucl. Phys. B249, 557 (1985).
  4. T. M. Bibilashvili and G. R. Dvali, Phys. Lett. B 263, 359 (1991).
  5. A. D. Linde, Phys. Lett. 100B, 37 (1981); Nucl. Phys. B216, 421 (1983).
  6. J. Ambjørn, N. K. Nielsen and P. Olesen, Nucl. Phys. B310, 625 (1988).
  7. J. Ambjørn and P. Olesen, Phys. Lett. B 257, 201 (1991).
  8. J. Ambjørn and P. Olesen, Nucl. Phys. B315, 606 (1989).
  9. A. D. Linde, Phys. Lett. 86B, 39 (1979).
  10. H. Ruegg, Phys. Rev. D 22, 2040 (1980); D. D. Wu, Nucl. Phys. B199, 523 (1982); ibid. B213, 545(E) (1983); J. Kim, ibid. B197, 174 (1982).
  11. A. Vilenkin and A. E. Everett, Phys. Rev. Lett. 48, 1867 (1982).
  12. U. A. Yajnik, Phys. Lett. B 184, 229 (1987).
  13. P. Langacker and S.-Y. Pi, Phys. Rev. Lett. 45, 1 (1980); A. H. Guth and S.-H. H. Tye, 44, 631 (1980).
  14. S. Parke and S.-Y. Pi, Phys. Lett. 107B, 54 (1981).
  15. V. A. Kuzmin, M. E. Shaposhnikov and I. I. Tkachev, Z. Phys. C 12, 83 (1982).
  16. A. D. Linde, Rep. Prog. Phys. 42, 389 (1979); S. Weinberg, Phys. Rev. D 9, 3357 (1974); L. Dolan and R. Jackiw, ibid. 9, 3320 (1974).

Outline

Information

Phys. Rev. D 45, 665– Published 15 January, 1992
  • Received 5 August 1991

© 1992 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation