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Spectra in Gross-Pitaevskii turbulence within a spectral closure approximation

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The spectra for Gross-Pitaevskii turbulence are obtained within a spectral closure approximation. The spectral closure approximation reduces to conventional weak wave turbulence (WWT) theory for weak non-linearity and it is also capable of deriving the spectrum for strong non-linearity. Spectra in turbulence with strong nonlinear are obtained for both the energy-transfer range and the particle-number-transfer range.

Author(s):

Kyo Yoshida    
University of Tuskuba
Japan

Toshihico Arimitsu    
University of Tsukuba
Japan