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Modulation instability and periodic solutions of the nonlinear Schroedinger equation

Journal Article · · Theor. Math. Phys.; (United States)
OSTI ID:5825833
A very simple exact analytic solution of the nonlinear Schroedinger equation is found in the class of periodic solutions. It describes the time evolution of a wave with constant amplitude on which a small periodic perturbation is superimposed. Expressions are obtained for the evolution of the spectrum of this solution, and these expressions are analyzed qualitatively. It is shown that there exists a certain class of periodic solutions for which the real and imaginary parts are linearly related, and an example of a one-parameter family of such solutions is given.
OSTI ID:
5825833
Journal Information:
Theor. Math. Phys.; (United States), Journal Name: Theor. Math. Phys.; (United States) Vol. 69:2; ISSN TMPHA
Country of Publication:
United States
Language:
English