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Multistring solutions by soliton methods in de Sitter spacetime

1994
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Physical Review D, Particles and fields
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Exact solutions of the string equations of motion and constraints are systematically constructed in de Sitter spacetime using the dressing method of soliton theory. The string dynamics in de Sitter spacetime is integrable due to the associated linear system. We start from an exact string solution q (0) and the associated solution of the linear system Ψ (0) (λ), and we construct a new solution Ψ(λ) differing from Ψ (0) (λ) by a rational matrix in λ with at least four poles λ 0 , 1/λ 0 , λ * 0 ,

doi:10.1103/physrevd.50.2754
pmid:10017908
fatcat:zmgnwi5qkfe3jjn2dr6dzvvwda