On periodic solutions and their modulations for the Manakov system

preprint2014arXivOpen access

Abstract

Periodic solutions of the Manakov system are studied with the aim to establish links between recent results of Wright (Physica D 2013 {\bf 264} 1) and Kamchatnov (EPL 2013 \textbf{103} 60003), where the one-phase solutions have been obtained by different methods and with different parameterizations. Two types of waves, which in the context of dynamics of two-component Bose-Einstein condensates can be called {\it density} and {\it polarization} waves, are determined as particular solutions of the Manakov system. Whitham equations describing modulations of these two types of waves are obtained.

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