Zobrazeno 1 - 10
of 197
pro vyhledávání: '"Ariel, Gil"'
Materials that are constantly driven out of thermodynamic equilibrium, such as active and living systems, typically violate the Einstein relation. This may arise from active contributions to particle fluctuations which are unrelated to the dissipativ
Externí odkaz:
http://arxiv.org/abs/2405.17142
Stochastic thermodynamics is a developing theory for systems out of thermal equilibrium. It allows to formulate a wealth of nontrivial relations among thermodynamic quantities such as heat dissipation, excess work, and entropy production in generic n
Externí odkaz:
http://arxiv.org/abs/2405.13855
Topological defects, which are singular points in a director field, play a major role in shaping active systems. Here, we experimentally study topological defects and the flow patterns around them, that are formed during the highly rapid dynamics of
Externí odkaz:
http://arxiv.org/abs/2401.05560
Publikováno v:
Soft Matter 19, 5118 (2023)
A major challenge in the study of active matter lies in quantitative characterization of phases and transitions between them. We show how the entropy of a collection of active objects can be used to classify regimes and spatial patterns in their coll
Externí odkaz:
http://arxiv.org/abs/2304.13679
Publikováno v:
Phys. Rev. Lett. 131, 147101 (2023)
Relating thermodynamic and kinetic properties is a conceptual challenge with many practical benefits. Here, based on first principles, we derive a rigorous inequality relating the entropy and the dynamic propagator of particle configurations. It is u
Externí odkaz:
http://arxiv.org/abs/2212.12746
Publikováno v:
Phys. Rev. E 108, 064115 (2023)
The pair correlation function (PCF) has proven an effective tool for analyzing many physical systems due to its simplicity and its applicability to simulated and experimental data. However, as an averaged quantity, the PCF can fail to capture subtle
Externí odkaz:
http://arxiv.org/abs/2210.09731
Publikováno v:
Phys. Rev. E 107, 014138 (2023)
We derive a functional for the entropy contributed by any microscopic degrees of freedom as arising from their measurable pair correlations. Applicable both in and out of equilibrium, this functional yields the maximum entropy which a system can have
Externí odkaz:
http://arxiv.org/abs/2208.05295
In nature, bacterial collectives typically consist of multiple species, which are interacting both biochemically and physically. Nonetheless, past studies on the physical properties of swarming bacteria were focused on axenic (single species) populat
Externí odkaz:
http://arxiv.org/abs/2203.04235
Autor:
Worlitzer, Vasco M., Jose, Ajesh, Grinberg, Ilana, Bär, Markus, Heidenreich, Sebastian, Eldar, Avigdor, Ariel, Gil, Be'er, Avraham
Publikováno v:
Science Advances 2022
Bacteria organize in a variety of collective states, from swarming, which has been attributed to rapid surface exploration, to biofilms, which are highly dense immobile communities attributed to stress resistance. It has been suggested that biofilm a
Externí odkaz:
http://arxiv.org/abs/2110.11025
Autor:
Worlitzer, Vasco M., Ariel, Gil, Be'er, Avraham, Stark, Holger, Bär, Markus, Heidenreich, Sebastian
Publikováno v:
Soft Matter 2021
We study a novel phase of active polar fluids, which is characterized by the continuous creation and destruction of dense clusters due to self-sustained turbulence. This state arises due to the interplay of the self-advection of the aligned swimmers
Externí odkaz:
http://arxiv.org/abs/2107.07588