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Lack of universality in decaying magnetohydrodynamic turbulence
(American Physical Society, 2010-01)
Using computations of three-dimensional magnetohydrodynamic (MHD) turbulence with a Taylor-Green flow, whose inherent time-independent symmetries are implemented numerically, and in the absence of either a forcing function ...
Nonlocal interactions in hydrodynamic turbulence at high Reynolds numbers: The slow emergence of scaling laws
(American Physical Society, 2008-12)
We analyze the data stemming from a forced incompressible hydrodynamic simulation on a grid of 20483 regularly spaced points, with a Taylor Reynolds number of Rλ ∼1300. The forcing is given by the Taylor-Green vortex, which ...
Dynamic scaling in natural swarms
(Nature Publishing Group, 2017-06)
Collective behaviour in biological systems presents theoretical challenges beyond the borders of classical statistical physics. The lack of concepts such as scaling and renormalization is particularly problematic, as it ...
Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
(American Physical Society, 2014-03)
The energy lost by helium atoms axially scattered from a Ag(110) surface is studied in order to investigate the influence of dissipative processes on fast atom diffraction spectra. In this work inelastic projectile ...
Thermal corrections to quantum friction and decoherence: A closed-time-path approach to atom-surface interaction
(American Physical Society, 2019-05-15)
In this paper we study the dissipative effects and decoherence induced on a particle moving at constant speed in front of a dielectric plate in quantum vacuum, developing a closed-time-path (CTP) integral formulation in ...
Synergistic effects of Lactobacillus acidophilus S-layer and Nisin on bacterial growth
(American Society for Microbiology, 2009-11)
We have previously described a murein hydrolase activity for the surface layer (S-layer) of Lactobacillus acidophilus ATCC 4356. Here we show that, in combination with nisin, this S-layer acts synergistically to inhibit ...
Heat production and energy balance in nanoscale engines driven by time-dependent fields
(American Physical Society, 2007-12)
We present a formalism to study the heat transport and the power developed by the local driving fields on a quantum system coupled to macroscopic reservoirs. We show that, quite generally, two important mechanisms can take ...
Towards detecting traces of non-contact quantum friction in the corrections of the accumulated geometric phase
(Nature, 2020-02)
The geometric phase can be used as a fruitful venue of investigation to infer features of the quantum systems. Its application can reach new theoretical frontiers and imply innovative and challenging experimental proposals. ...
Nonlinear fluctuations in relativistic causal fluids
(Springer, 2020-07)
In the Second Order Theories (SOT) of real relativistic fluids, the non-ideal properties of the flows are described by a new set of dynamical tensor variables. In this work we explore the non-linear dynamics of those ...