Universal dynamics of a turbulent superfluid Bose gas.
OROZCO, Arnol Daniel García; MADEIRA, Lucas; ARMIJOS, Michelle Alejandra Moreno; FRITSCH, Amilson Rogesio; TAVARES, Pedro Ernesto Schiavinatti; CASTILHO, Patricia Christina Marques; CIDRIM, André; ROATI, G.; BAGNATO, Vanderlei Salvador.
OROZCO, Arnol Daniel García; MADEIRA, Lucas; ARMIJOS, Michelle Alejandra Moreno; FRITSCH, Amilson Rogesio; TAVARES, Pedro Ernesto Schiavinatti; CASTILHO, Patricia Christina Marques; CIDRIM, André; ROATI, G.; BAGNATO, Vanderlei Salvador.
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.
@article={003094415,author = {OROZCO, Arnol Daniel García; MADEIRA, Lucas; ARMIJOS, Michelle Alejandra Moreno; FRITSCH, Amilson Rogesio; TAVARES, Pedro Ernesto Schiavinatti; CASTILHO, Patricia Christina Marques; CIDRIM, André; ROATI, G.; BAGNATO, Vanderlei Salvador.},title={Universal dynamics of a turbulent superfluid Bose gas},journal={Physical Review A},note={v. 106, n. 2, p. 023314-1-023314-10},year={2022}}