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Strong quantum turbulence in Bose-Einstein condensates

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Author(s):
Middleton-Spencer, H. A. J. ; Orozco, A. D. G. ; Galantucci, L. ; Moreno, M. ; Parker, N. G. ; Machado, L. A. ; Bagnato, V. S. ; Barenghi, C. F.
Total Authors: 8
Document type: Journal article
Source: PHYSICAL REVIEW RESEARCH; v. 5, n. 4, p. 10-pg., 2023-10-24.
Abstract

By combining experiments and numerical simulations which model the dynamics of shaken atomic BoseEinstein condensates, we reveal the surprising nature of quantum turbulence in these systems. Unlike the tangles of vortex lines described in the superfluid helium literature, we find that our turbulent atomic condensate contains a mixture of strong fragmented density fluctuations and small random vortex loops which are not homogeneously distributed. This unusual form of turbulence, with its own properties and scaling behavior, which we call strong quantum turbulence, is significantly different from the turbulence which is observed in either classical or other quantum systems, thus posing a new challenge in turbulence research. (AU)

FAPESP's process: 13/07276-1 - CEPOF - Optics and Photonic Research Center
Grantee:Vanderlei Salvador Bagnato
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC