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- Centre National de la Recherche ScientifiqueFR19 papers
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6 papers · 1 filter
Dynamics of Aligning Active Matter: Mapping to a Schrödinger Equation and Exact Diagonalization
Tara Steinhöfel, Horst-Holger Boltz, Thomas Ihle
There has been recent interest in the relaxational modes of small-scale fully connected systems of aligning self-propelled particles (Spera et al., Phys. Rev. Lett. {\bf 132}: 0783…
Spectral insights into active matter: Exceptional Points and the Mathieu equation
Horst-Holger Boltz, Thomas Ihle
We show that recent numerical findings of universal scaling relations in systems of noisy, aligning self-propelled particles by Kürsten [Kürsten, arXiv:2402.18711v2 [cond-mat.soft]…
Giant Kovacs-Like Memory Effect for Active Particles
Rüdiger Kürsten, Vladimir Sushkov, Thomas Ihle
Dynamical properties of a Vicsek-like gas of self-propelled particles are investigated by means of kinetic theory and agent based simulations. While memory effects have been observ…
Discontinuous transitions in globally coupled potential systems with additive noise
Rüdiger Kürsten, Ulrich Behn
An infinite array of globally coupled overdamped constituents moving in a double-well potential with -th order saturation term under the influence of additive Gaussian white noi…
Green-Function-Based Monte Carlo Method for Classical Fields Coupled to Fermions
Alexander Weiße
Microscopic models of classical degrees of freedom coupled to non-interacting fermions occur in many different contexts. Prominent examples from solid state physics are description…
Partially ionized plasmas in electromagnetic fields
Dietrich Kremp, Dirk Semkat, Thomas Bornath +3
The interaction of partially ionized plasmas with an electromagnetic field is investigated using quantum statistical methods. A general statistical expression for the current densi…