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pro vyhledávání: '"Gonnella G."'
Molecular dynamics simulations were employed to investigate the phase separation process of a two-dimensional active Brownian dumbbell model. We evaluated the time dependence of the typical size of the dense component using the scaling properties of
Externí odkaz:
http://arxiv.org/abs/2402.06998
Autor:
Caporusso, C. B., Negro, G., Suma, A., Digregorio, P., Carenza, L. N., Gonnella, G., Cugliandolo, L. F.
We present a comprehensive numerical study of the phase behavior and dynamics of a three-dimensional active dumbbell system with attractive interactions. We demonstrate that attraction is essential for the system to exhibit nontrivial phases. We cons
Externí odkaz:
http://arxiv.org/abs/2308.00532
In the last years self-motile droplets attracted the attention of scientists from different fields ranging from applied biology to theoretical physics, because of their promising technological applications and important biological implications. In th
Externí odkaz:
http://arxiv.org/abs/2208.11386
Autor:
Gonnella, G., Lamura, A.
Publikováno v:
J. Phys. A: Math. Theor. 53, 305002 (2020)
The phase-separation process of a binary mixture with order-parameter-dependent mobility under shear flow is numerically studied. The ordering is characterized by an alternate stretching and bursting of domains which produce oscillations in the physi
Externí odkaz:
http://arxiv.org/abs/2112.05981
Active matter describes materials whose constituents are driven out of equilibrium by continuous energy consumption, for instance from ATP. Due to the orientable character of the constituents, active suspensions can attain liquid crystalline order an
Externí odkaz:
http://arxiv.org/abs/2011.00287
Publikováno v:
Sci Rep 10, 15936 (2020)
We use computer simulations to study the morphology and rheological properties of a bidimensional emulsion resulting from a mixture of a passive isotropic fluid and an active contractile polar gel, in the presence of a surfactant that favours the emu
Externí odkaz:
http://arxiv.org/abs/2010.14910
Publikováno v:
Europhys. Lett., 133(5), pp. 58004 (2021)
Active fluids are intrinsically out-of-equilibrium systems due to the internal energy injection of the active constituents. We show here that a transition from a motion-less isotropic state towards a flowing polar one can be possibly driven by the so
Externí odkaz:
http://arxiv.org/abs/2010.14124
We study the large deviations of the distribution P(W_\tau) of the work associated with the propulsion of individual active brownian particles in a time interval \tau, in the region of the phase diagram where macroscopic phase separation takes place.
Externí odkaz:
http://arxiv.org/abs/2001.08500
Publikováno v:
Phys. Rev. E 97, 023309 (2018)
Aiming to study the bubble cavitation problem in quiescent and sheared liquids, a third-order isothermal lattice Boltzmann (LB) model that describes a two-dimensional ($2D$) fluid obeying the van der Waals equation of state, is introduced. The evolut
Externí odkaz:
http://arxiv.org/abs/1802.01272
Publikováno v:
Eur. Phys. Journ. E 40, 112 (2017)
We numerically study the behavior of self-propelled liquid droplets whose motion is triggered by a Marangoni-like flow. This latter is generated by variations of surfactant concentration which affect the droplet surface tension promoting its motion.
Externí odkaz:
http://arxiv.org/abs/1711.10984