Momentum distribution of Vinen turbulence in trapped atomic Bose–Einstein condensates. Marino, Á. V. M., Madeira, L., Cidrim, A., dos Santos, F. E. A., & Bagnato, V. S. The European Physical Journal Special Topics, 230(4):809–812, June, 2021. Paper doi abstract bibtex The decay of multicharged vortices in trapped Bose–Einstein condensates may lead to a disordered vortex state consistent with the Vinen regime of turbulence, characterized by an absence of large-scale flow and an incompressible kinetic energy spectrum \$\$E\textbackslashpropto k\textasciicircum\-1\\$\$. In this work, we study numerically the dynamics of a three-dimensional harmonically trapped Bose–Einstein condensate excited to a Vinen regime of turbulence through the decay of two doubly-charged vortices. First, we study the momentum distribution and observe the emergence of a power-law behavior \$\$n(k)\textbackslashpropto k\textasciicircum\-3\\$\$consistent with the coexistence of wave turbulence. We also study the kinetic energy and particle fluxes, which allows us to identify a direct particle cascade associated with the turbulent stage.
@article{marino_momentum_2021,
title = {Momentum distribution of {Vinen} turbulence in trapped atomic {Bose}–{Einstein} condensates},
volume = {230},
issn = {1951-6401},
url = {https://doi.org/10.1140/epjs/s11734-021-00083-3},
doi = {10.1140/epjs/s11734-021-00083-3},
abstract = {The decay of multicharged vortices in trapped Bose–Einstein condensates may lead to a disordered vortex state consistent with the Vinen regime of turbulence, characterized by an absence of large-scale flow and an incompressible kinetic energy spectrum \$\$E{\textbackslash}propto k{\textasciicircum}\{-1\}\$\$. In this work, we study numerically the dynamics of a three-dimensional harmonically trapped Bose–Einstein condensate excited to a Vinen regime of turbulence through the decay of two doubly-charged vortices. First, we study the momentum distribution and observe the emergence of a power-law behavior \$\$n(k){\textbackslash}propto k{\textasciicircum}\{-3\}\$\$consistent with the coexistence of wave turbulence. We also study the kinetic energy and particle fluxes, which allows us to identify a direct particle cascade associated with the turbulent stage.},
language = {en},
number = {4},
urldate = {2021-11-06},
journal = {The European Physical Journal Special Topics},
author = {Marino, Áttis V. M. and Madeira, Lucas and Cidrim, André and dos Santos, F. E. A. and Bagnato, Vanderlei S.},
month = jun,
year = {2021},
pages = {809--812},
}
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