MULTISTRING SOLUTIONS IN INFLATIONARY SPACETIMES

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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RevTex, 13 pages and 5 Postscript figures (added in uuencoded file produced by means of uufiles routine)

Scientific paper

10.1088/0264-9381/13/5/019

Multistring solutions of the string equations of motion are found for inflationary spacetimes with expansion factor $R(\eta)\propto \eta^k$ for any $k<0$ and $\eta$ conformal time. If $0>k>-1$ only two-string solutions can be found within our ansatz, whereas for $k=-1-1/n$, with $n=1,2,\ldots$, multistring solutions exist with an infinite number of strings [In the special case $k=-2$ we recover de Sitter spacetime where multistring solutions were first found].

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