Scalar-Field Potential Distribution for a Closed “Thick” Null String Moving in the Plane z = 0

  • O. P. Lelyakov V.I. Vernadskyi Tavrida National University
  • A. S. Karpenko V.I. Vernadskyi Tavrida National University
  • R.-D. O. Babadzhan V.I. Vernadskyi Tavrida National University
Keywords: scalar-field potential, “thick” null string, energy-momentum tensor

Abstract

A general form for the scalar-field potential distribution has been proposed for a closed “thick” null string either collapsing or expanding in the plane z = 0. Conditions, under which the energy-momentum tensor components for a scalar field that contracts into a one-dimensional object (a circle with a varying radius) asymptotically coincide with those for a closed null string moving along the same trajectory, have been found.

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Published
2018-10-23
How to Cite
Lelyakov, O., Karpenko, A., & Babadzhan, R.-D. (2018). Scalar-Field Potential Distribution for a Closed “Thick” Null String Moving in the Plane z = 0. Ukrainian Journal of Physics, 59(5), 547. https://doi.org/10.15407/ujpe59.05.0547
Section
Astrophysics and cosmology