Universal dynamics of a turbulent superfluid Bose gas

Year: 2022

Authors: Garcia-Orozco AD., Madeira L., Moreno-Armijos MA., Fritsch AR., Tavares PES., Castilho PCM., Cidrim A., Roati G., Bagnato VS.

Autors Affiliation: Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Carlos, Brazil; Univ Maryland, Natl Inst Stand & Technol, Joint Quantum Inst, Gaithersburg, MD 20899 USA; Univ Fed Minas Gerais, Dept Fis, CP 702, BR-31270901 Belo Horizonte, Brazil; Inst Fed Educ Ciencia & Tecnol Sao Paulo, Campus Pirituba, BR-05110000 Sao Paulo, SP, Brazil; Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, Brazil; Ist Nazl Ottica Consiglio Nazl Ric INO CNR, I-50019 Sesto Fiorentino, Italy; European Lab Nonlinear Spect LENS, I-50019 Sesto Fiorentino, Italy; Texas A&M Univ, Hagler Inst Adv Study, College Stn, TX 77843 USA.

Abstract: We study the emergence of universal scaling in the time-evolving momentum distribution of a harmonically trapped three-dimensional Bose-Einstein condensate, parametrically driven to a turbulent state. We demonstrate that the out-of-equilibrium dynamics post excitation is described by a single function due to nearby nonthermal fixed points. The observed behavior connects the dynamics of a quantum turbulent state to several far-fromequilibrium phenomena. We present a controllable protocol to explore universality in such systems, obtaining the associated scaling exponents. Our experimental results thus offer a promising route to investigate the complex dynamics of the quantum turbulent regime.

Journal/Review: PHYSICAL REVIEW A

Volume: 106 (2)      Pages from: 23314-1  to: 23314-10

More Information: ACKNOWLEDGMENTS We thank A. Pi’eiro Orioli, R. P. Smith, M. Cara-canhas, and T. Gasenzer for fruitful discussions and G. D. Telles for support with the experimental setup. This work was supported by the S’o Paulo Research Foundation (FAPESP) under Grants No. 2013/07276-1, No. 2014/50857-8, No. 2017/09390-7, and No. 2018/09191-7, and by the National Council for Scientific and Technological Devel-opment (CNPq) under Grants No. 465360/2014-9 and No. 142436/2018-6.
KeyWords: Einstein Condensate
DOI: 10.1103/PhysRevA.106.023314

Citations: 13
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-17
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here