Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-12-08
Phys. Rev. E 73, 056611 (2006)
Physics
Condensed Matter
Other Condensed Matter
4 pages, 4 eps figures
Scientific paper
10.1103/PhysRevE.73.056611
We present a large family of {\it{exact}} solitary wave solutions of the one dimensional Gross-Pitaevskii equation, with time-varying scattering length and gain/loss, in both expulsive and regular parabolic confinement regimes. The consistency condition governing the soliton profiles is shown to map on to a {\it{linear}} Schr\"odinger eigenvalue problem, thereby enabling one to find analytically the effect of a wide variety of temporal variations in the control parameters, which are experimentally realizable. Corresponding to each solvable quantum mechanical system, one can identify a soliton configuration. These include soliton trains in close analogy to experimental observations of Strecker {\it{et al.,}} [Nature {\bf{{417}}{150}{2002}], spatio-temporal dynamics, solitons undergoing rapid amplification, collapse and revival of condensates and analytical expression of two-soliton bound states, to name a few.
Agarwal Girish S.
Atre Rajneesh
Panigrahi Prasanta K.
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