Stability and decay of Bloch oscillations in the presence of time-dependent nonlinearity
作者： Christopher Gaul , Elena Díaz , Rodrigo P. A. Lima , Francisco Domínguez-Adame , Cord A. Müller
DOI: 10.1103/PHYSREVA.84.053627
关键词:
摘要: We consider Bloch oscillations of Bose-Einstein condensates in the presence a time-modulated s-wave scattering length. Generically, interaction leads to dephasing and decay wave packet. Based on cyclic-time argument, we find-in addition linear oscillation rigid soliton solution-an infinite family modulations that lead periodic time evolution In order quantitatively describe dynamics interactions, employ two complementary methods: collective coordinates stability analysis an extended provide instructive examples address question robustness against external perturbations.
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