Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Gleb Oshanin"'
Autor:
Vittoria Sposini, Diego Krapf, Enzo Marinari, Raimon Sunyer, Felix Ritort, Fereydoon Taheri, Christine Selhuber-Unkel, Rebecca Benelli, Matthias Weiss, Ralf Metzler, Gleb Oshanin
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-10 (2022)
Anomalous-diffusion identifies the departure of diffusive dynamics from the traditional Brownian-motion and is a signature feature of a large number of complex soft-matter and biological systems. This article reports an analysis of an easy to impleme
Externí odkaz:
https://doaj.org/article/16a7e893300b49b480271a1035dc62ca
Publikováno v:
New Journal of Physics, Vol 24, Iss 1, p 013018 (2022)
We study analytically the single-trajectory spectral density (STSD) of an active Brownian motion (BM) as exhibited, for example, by the dynamics of a chemically-active Janus colloid. We evaluate the standardly-defined spectral density, i.e. the STSD
Externí odkaz:
https://doaj.org/article/0f435908c1ba442390783bfb7fc7ed08
Publikováno v:
New Journal of Physics, Vol 24, Iss 8, p 083035 (2022)
The time instant—the first-passage time (FPT)—when a diffusive particle (e.g., a ligand such as oxygen or a signalling protein) for the first time reaches an immobile target located on the surface of a bounded three-dimensional domain (e.g., a he
Externí odkaz:
https://doaj.org/article/00b4c8134d3048e1bfb2217e50f97992
Publikováno v:
New Journal of Physics, Vol 24, Iss 9, p 093031 (2022)
We investigate the stochastic behavior of the single-trajectory spectral density $S(\omega ,\mathcal{T})$ of several Gaussian stochastic processes, i.e., Brownian motion, the Ornstein–Uhlenbeck process, the Brownian gyrator model and fractional Bro
Externí odkaz:
https://doaj.org/article/e287426f733c4aeab4583c6893451735
Publikováno v:
New Journal of Physics, Vol 23, Iss 12, p 123049 (2021)
We study the probability density function (PDF) of the first-reaction times between a diffusive ligand and a membrane-bound, immobile imperfect target region in a restricted ‘onion-shell’ geometry bounded by two nested membranes of arbitrary shap
Externí odkaz:
https://doaj.org/article/636ab8779fa5462a88a7a86a2cc15e53
Publikováno v:
New Journal of Physics, Vol 23, Iss 2, p 023014 (2021)
We study the extremal properties of a stochastic process x _t defined by the Langevin equation ${\dot {x}}_{t}=\sqrt{2{D}_{t}}\enspace {\xi }_{t}$ , in which ξ _t is a Gaussian white noise with zero mean and D _t is a stochastic ‘diffusivity’, d
Externí odkaz:
https://doaj.org/article/d339e72931de4b7384053c9f7376351f
Publikováno v:
New Journal of Physics, Vol 23, Iss 9, p 093004 (2021)
We consider a sequential cascade of molecular first-reaction events towards a terminal reaction centre in which each reaction step is controlled by diffusive motion of the particles. The model studied here represents a typical reaction setting encoun
Externí odkaz:
https://doaj.org/article/62018b5397a649669a1fdbe03885587d
Publikováno v:
New Journal of Physics, Vol 22, Iss 5, p 053052 (2020)
We study statistical properties of the process Y ( t ) of a passive advection by quenched random layered flows in situations when the inter-layer transfer is governed by a fractional Brownian motion X ( t ) with the Hurst index H ∈ (0,1). We show t
Externí odkaz:
https://doaj.org/article/aebe6dbf394e4a63a927061976bfbd65
Publikováno v:
New Journal of Physics, Vol 22, Iss 3, p 033024 (2020)
We study, by extensive numerical simulations, the dynamics of a hard-core tracer particle (TP) in presence of two competing types of disorder— frozen convection flows on a square random Manhattan lattice and a crowded dynamical environment formed b
Externí odkaz:
https://doaj.org/article/e715a005067b4fa89f81f682d52b6008
Publikováno v:
New Journal of Physics, Vol 22, Iss 6, p 063056 (2020)
Stochastic models based on random diffusivities, such as the diffusing-diffusivity approach, are popular concepts for the description of non-Gaussian diffusion in heterogeneous media. Studies of these models typically focus on the moments and the dis
Externí odkaz:
https://doaj.org/article/00f06ca8607745b29e02b4c7042bbcb5