Arnol Daniel García-Orozco
University of São Paulo
Universality (philosophy)Time evolutionPhysicsStatistical physicsComplex dynamicsQuantum fluidContinuity equationFluxTurbulenceBose gasSuperfluidityQuantum turbulenceClassical fluidsQuantum electrodynamicsCascadeBose–Einstein condensateSuperfluid helium-4Energy fluxMechanicsMomentumClassical mechanicsExcitationQuantumEntropy (classical thermodynamics)Scaling
8Publications
3H-index
16Citations
Publications 7
Newest
#1Lucas MadeiraH-Index: 7
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Quantum turbulence is characterized by many degrees of freedom interacting non-linearly to produce disordered states, both in space and in time. In this work, we investigate the decaying regime of quantum turbulence in a trapped Bose–Einstein condensate. We present an alternative way of exploring this phenomenon by defining and computing a characteristic length scale, which possesses relevant characteristics to study the establishment of the quantum turbulent regime. We reconstruct the three-dim...
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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 non-thermal fixed points. The observed behavior connects the dynamics of a quantum turbulent state to several far-from-equilibrium phenomena. We present a controllable protocol to exp...
#1Lucas MadeiraH-Index: 7
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Quantum turbulence deals with the phenomenon of turbulence in quantum fluids, such as superfluid helium and trapped Bose-Einstein condensates (BECs). Although much progress has been made in understanding quantum turbulence, several fundamental questions remain to be answered. In this work, we investigated the entropy of a trapped BEC in several regimes, including equilibrium, small excitations, the onset of turbulence, and a turbulent state. We considered the time evolution when the system is pe...
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#1Lucas Madeira (USP: University of São Paulo)H-Index: 7
#2Arnol Daniel García-Orozco (USP: University of São Paulo)H-Index: 3
Last. Vanderlei Salvador Bagnato (USP: University of São Paulo)H-Index: 64
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Quantum turbulence deals with the phenomenon of turbulence in quantum fluids, such as superfluid helium and trapped Bose-Einstein condensates (BECs). Although much progress has been made in understanding quantum turbulence, several fundamental questions remain to be answered. In this work, we investigated the entropy of a trapped BEC in several regimes, including equilibrium, small excitations, the onset of turbulence, and a turbulent state. We considered the time evolution when the system is pe...
Source
#2Lucas MadeiraH-Index: 7
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In turbulence phenomena, including the quantum turbulence in superfluids, an energy flux flows from large to small length scales, composing a cascade of energy. A universal characteristic of turbulent flows is the existence of a range of scales where the energy flux is scale-invariant: this interval of scales is often referred to as inertial region. This property is fundamental as, for instance, in turbulence of classical fluids it characterizes the behavior of statistical features such as spect...
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#1F. J. VivancoH-Index: 2
#2A. R. FritschH-Index: 4
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#2A. R. FritschH-Index: 4
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