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of 138
pro vyhledávání: '"Schmiedeberg, Michael"'
Using Brownian dynamics simulations we study gel-forming colloid-polymer mixtures. The focus of this article lies on the differences of dense and dilute gel networks in terms of structure formation both on a local and a global level. We apply reducti
Externí odkaz:
http://arxiv.org/abs/2312.11156
Autor:
Schmiedeberg, Michael
Publikováno v:
EPL 142, 57002 (2023)
To study the interplay of jamming, cluster formation, and motility-induced phase separation in the zero temperature limit in two dimensions, we consider a simple model system consisting of a bidisperse mixture of disks that are only subject to a repu
Externí odkaz:
http://arxiv.org/abs/2302.00570
Publikováno v:
Modelling Simul. Mater. Sci. Eng. 30, 074003 (2022)
We introduce a Phase Field Crystal (PFC) model for particles with n-fold rotational symmetry in two dimensions. Our approach is based on a free energy functional that depends on the reduced one-particle density, the strength of the orientation, and t
Externí odkaz:
http://arxiv.org/abs/2204.00051
Autor:
Bley, Jonas, Pietz, Antony, Fösel, Angela, Schmiedeberg, Michael, Heusler, Stefan, Pusch, Alexander
Despite the difficult circumstances due to the COVID-19 pandemics, physics students can tackle interesting questions that are part of physics competitions as the German Physicists' Tournament (GPT) 2020. Due to the COVID-19 pandemics in 2020, many co
Externí odkaz:
http://arxiv.org/abs/2107.00950
Publikováno v:
Journal of Chemical Physics 154, 244903 (2021)
The competition of depletion attractions and longer-ranged repulsions between colloidal particles in colloid-polymer mixtures leads to the formation of heterogeneous gel-like structures. For instance, gel networks, i.e., states where the colloids arr
Externí odkaz:
http://arxiv.org/abs/2103.00029
Publikováno v:
Phys. Rev. E 102, 062604 (2020)
We consider an active Brownian particle moving in a disordered two-dimensional energy or motility landscape. The averaged mean-square-displacement (MSD) of the particle is calculated analytically within a systematic short-time expansion. As a result,
Externí odkaz:
http://arxiv.org/abs/2010.11076
Publikováno v:
EPL 133, 38001 (2021)
We study athermal jamming as well as the thermal glassy dynamics in systems composed of spheres that interact according to repulsive interactions that exponentially decay as a function of distance. As usual, a cutoff is employed in the simulations. W
Externí odkaz:
http://arxiv.org/abs/2009.05313
Autor:
Arold, Dominic, Schmiedeberg, Michael
Publikováno v:
Eur. Phys. J. E 43, 47 (2020)
Many active matter systems, mostly on the microscopic scale, are well approximated as overdamped, meaning that any inertial momentum is immediately dissipated by the environment. On the other hand, especially for macroscopic active systems but also f
Externí odkaz:
http://arxiv.org/abs/2001.07948
Autor:
Arold, Dominic, Schmiedeberg, Michael
Publikováno v:
J. Phys.: Condens. Matter 32, 315403 (2020)
Many active matter systems, especially on the microscopic scale, are well approximated as overdamped, meaning that any inertial momentum is immediately dissipated by the environment. On the other hand, especially for macroscopic active systems but al
Externí odkaz:
http://arxiv.org/abs/1912.07038
Publikováno v:
Journal of Physics: Conference Series 1458, 012018 (2020)
We introduce a novel simulation method that is designed to explore fluctuations of the phasonic degrees of freedom in decagonal colloidal quasicrystals. Specifically, we attain and characterise thermal equilibrium of the phason ensemble via Monte Car
Externí odkaz:
http://arxiv.org/abs/1906.07045