Dynamics of a probe null string in the gravitational field of a closed null string radially collapsing in the plane

We consider the dynamics of a probe null string in the gravitational field of a closed ( “thick” ) null string radially collapsing in a plane. Analysis of the obtained solutions suggests that there might exist several properties of a null-string gas interesting from the cosmological standpoint, such...

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Bibliographic Details
Published inTheoretical and mathematical physics Vol. 190; no. 1; pp. 140 - 153
Main Authors Lelyakov, A. P., Karpenko, A. S.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2017
Springer Nature B.V
Subjects
Applications of Mathematics
Gravitational fields
Mathematical and Computational Physics
Physics
Physics and Astronomy
Theoretical
equation of motion
gravitational field
null string
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Summary:We consider the dynamics of a probe null string in the gravitational field of a closed ( “thick” ) null string radially collapsing in a plane. Analysis of the obtained solutions suggests that there might exist several properties of a null-string gas interesting from the cosmological standpoint, such as acceleration of expansion or contraction, a granular structure of the gas, the emergence of stable polarized states, and a domain structure .
ISSN:0040-5779
1573-9333
DOI:10.1134/S0040577917010123