Zobrazeno 1 - 10
of 422
pro vyhledávání: '"Luczka, J."'
We consider diffusion of an inertial Brownian particle moving in a symmetric spatially periodic potential and driven by an unbiased time periodic force of a moderate frequency. The study is focused on the dependence of its diffusion coefficient $D$ o
Externí odkaz:
http://arxiv.org/abs/2407.18592
Autor:
Spiechowicz, J., Łuczka, J.
We present a perspective of simple models of nonequilibrium directed transport described in terms of a Langevin equation formalism. We consider a Brownian particle under various circumstances and driven by thermal (equilibrium) and non-thermal (activ
Externí odkaz:
http://arxiv.org/abs/2406.01216
Recent pioneering experiments on non-Markovian dynamics done e.g. for active matter have demonstrated that our theoretical understanding of this challenging yet hot topic is rather incomplete and there is a wealth of phenomena still awaiting discover
Externí odkaz:
http://arxiv.org/abs/2402.16673
We analyse the impact of temperature on the diffusion coefficient of an inertial Brownian particle moving in a symmetric periodic potential and driven by a symmetric time-periodic force. Recent studies have revealed the low friction regime in which t
Externí odkaz:
http://arxiv.org/abs/2306.04977
Active fluctuations are detected in a growing number of systems due to self-propulsion mechanisms or collisions with active environment. They drive the system far from equilibrium and can induce phenomena which at equilibrium states are forbidden by
Externí odkaz:
http://arxiv.org/abs/2209.01465
Autor:
Marchenko, I. G., Zhiglo, A., Aksenova, V., Tkachenko, V., Marchenko, I. I., Łuczka, J., Spiechowicz, J.
We revisit the problem of diffusion in a driven system consisting of an inertial Brownian particle moving in a symmetric periodic potential and subjected to a symmetric time-periodic force. We reveal parameter domains in which diffusion is normal in
Externí odkaz:
http://arxiv.org/abs/2208.03223
Autor:
Spiechowicz, J., Łuczka, J.
Publikováno v:
Phys. Rev. E 104, 024132 (2021)
Multistability is one of the most important phenomena in dynamical systems, e.g. bistability enables the implementation of logic gates and therefore computation. Recently multistability has attracted a greatly renewed interest related to memristors a
Externí odkaz:
http://arxiv.org/abs/2104.12234
Publikováno v:
Phys. Rev. E 102, 042121 (2020)
We report on novel Brownian, yet non-Gaussian diffusion, in which the mean square displacement of the particle grows linearly with time, the probability density for the particle spreading is Gaussian-like, however, the probability density for its pos
Externí odkaz:
http://arxiv.org/abs/2009.05570
Autor:
Spiechowicz, J., Łuczka, J.
Publikováno v:
Scientific Reports 11, 4088 (2021)
Experimentalists have come to temperatures very close to absolute zero at which physics that was once ordinary becomes extraordinary. In such a regime quantum effects and fluctuations start to play a dominant role. In this context we study the simple
Externí odkaz:
http://arxiv.org/abs/2003.13567
Autor:
Spiechowicz, J., Luczka, J.
Publikováno v:
Phys. Rev. E 101, 032123 (2020)
The celebrated Sutherland-Einstein relation for systems at thermal equilibrium states that spread of trajectories of Brownian particles is an increasing function of temperature. Here, we scrutinize diffusion of underdamped Brownian motion in a biased
Externí odkaz:
http://arxiv.org/abs/2003.07919