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  • Letter

Emergence of isotropy in rotating turbulence of Bose-Einstein condensates

Yuto Sano

Makoto Tsubota

  • Department of Physics, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan

  • Department of Physics, Nambu Yoichiro Institute of Theoretical and Experimental Physics, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan

Phys. Rev. A 109, L031301 – Published 11 March, 2024

DOI: https://doi.org/10.1103/PhysRevA.109.L031301

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 progresses, the initial alignment of vortices undergoes slight disruptions, thereby increasing the high-wave-number 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 kz−2.5 in the direction parallel to the rotation axis. In contrast, the compressible kinetic energy exhibits an isotropic scaling behavior at high wave numbers.

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