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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Momentum distribution of Vinen turbulence in trapped atomic Bose-Einstein condensates

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Marino, Attis V. M. [1] ; Madeira, Lucas [1] ; Cidrim, Andre [2] ; dos Santos, F. E. A. [2] ; Bagnato, Vanderlei S. [1, 3]
Total Authors: 5
[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos - Brazil
[3] Texas A&M Univ, Dept Biomed Engn, College Stn, TX 77843 - USA
Total Affiliations: 3
Document type: Journal article
Source: European Physical Journal-Special Topics; v. 230, n. 4, SI APR 2021.
Web of Science Citations: 0

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 proportional to k(-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) proportional to k(-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. (AU)

FAPESP's process: 17/09390-7 - Entanglement and blockade effects in ultracold atomic clouds
Grantee:André Cidrim Santos
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/50857-8 - National Institute in Basic Optics and Applied to Life Sciences
Grantee:Vanderlei Salvador Bagnato
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/07276-1 - CEPOF - Optics and Photonic Research Center
Grantee:Vanderlei Salvador Bagnato
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 18/09191-7 - Vortices and turbulence in strongly interacting quantum fluids and their mixtures
Grantee:Lucas Madeira
Support type: Scholarships in Brazil - Post-Doctorate