Emergence of isotropy in rotating turbulence of Bose-Einstein condensates

Yuto Sano; Makoto Tsubota

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arXiv · 2312.03968

Emergence of isotropy in rotating turbulence of Bose-Einstein condensates

Yuto Sano·Makoto Tsubota

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Abstract

We present a study on the development of rotating turbulence in Bose-Einstein condensates with a dissipative Gross-Pitaevskii model. Turbulence is generated by driving the lattice of quantized vortices in a harmonic potential with a random forcing potential. As the turbulence progressed, the initial alignment of vortices underwent slight disruptions, thereby increasing the high-wavenumber components of the kinetic energy. In the turbulent state, the distribution of incompressible kinetic energy exhibits milder anisotropy than that in the initial lattice state and demonstrates a scaling behavior of $k_z^{-2.5}$ in the direction parallel to the rotation axis. In contrast, the compressible kinetic energy exhibits an isotropic scaling behavior at high wavenumbers.

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Yuto Sano, Makoto Tsubota. 2023-12-07. Emergence of isotropy in rotating turbulence of Bose-Einstein condensates. https://arxiv.org/abs/2312.03968

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