Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Meyer, Hugues"'
Chemotactic biological or synthetic active matter shapes its environment by secretions of chemical signals from its self-propelled constituents, like cells, organisms or active colloids. From this indirect interaction collective effects emerge that c
Externí odkaz:
http://arxiv.org/abs/2409.04262
Autor:
Meyer, Hugues, Rieger, Heiko
Search processes often involve multiple agents that collectively look for a randomly located target. While increasing the number of agents usually decreases the time at which the first agent finds the target, it also requires resources to create and
Externí odkaz:
http://arxiv.org/abs/2401.05851
Autor:
Meyer, Hugues, Rieger, Heiko
Agents searching for a target can improve their efficiency by memorizing where they have already been searching or by cooperating with other searchers and using strategies that benefit from collective effects. This chapter reviews such concepts: non-
Externí odkaz:
http://arxiv.org/abs/2311.05403
Autor:
Meyer, Hugues, Rieger, Heiko
Chemotaxis, i.e. motion generated by chemical gradients, is a motility mode shared by many living species that has been developed by evolution to optimize certain biological processes such as foraging or immune response. In particular, auto-chemotaxi
Externí odkaz:
http://arxiv.org/abs/2305.14011
Autor:
Meyer, Hugues, Rieger, Heiko
Publikováno v:
Phys. Rev. Lett. 127, 070601 (2021)
Stochastic search processes are ubiquitous in nature and are expected to become more efficient when equipped with a memory, where the searcher has been before. A natural realization of a search process with long-lasting memory is a migrating cell tha
Externí odkaz:
http://arxiv.org/abs/2105.10207
Publikováno v:
Phys. Rev. E 103, 022102 (2021)
We propose to describe the dynamics of phase transitions in terms of a non-stationary Generalized Langevin Equation for the order parameter. By construction, this equation is non-local in time, i.e.~it involves memory effects whose intensity is gover
Externí odkaz:
http://arxiv.org/abs/2010.05543
We present a numerical method to compute non-equilibrium memory kernels based on experimental data or molecular dynamics simulations. The procedure uses a recasting of the non-stationary generalized Langevin equation, in which we expand the memory ke
Externí odkaz:
http://arxiv.org/abs/1905.11753
Complex microscopic many-body processes are often interpreted in terms of so-called `reaction coordinates', i.e. in terms of the evolution of a small set of coarse-grained observables. A rigorous method to produce the equation of motion of such obser
Externí odkaz:
http://arxiv.org/abs/1901.09553
Publikováno v:
Phys. Rev. E 100, 052140 (2019)
We discuss the structure of the equation of motion that governs nucleation processes at first order phase transitions. From the underlying microscopic dynamics of a nucleating system, we derive by means of a non-equilibrium projection operator formal
Externí odkaz:
http://arxiv.org/abs/1809.09834
We study the Intermediate Scattering Function (ISF) of the strongly-nonlinear Fermi-Pasta Ulam Model at thermal equilibrium, using both numerical and analytical methods. From the molecular dynamics simulations we distinguish two limit regimes, as the
Externí odkaz:
http://arxiv.org/abs/1806.06210