Filtern
Volltext vorhanden
- nein (32)
Erscheinungsjahr
- 2014 (32) (entfernen)
Dokumenttyp
- Wissenschaftlicher Artikel (32) (entfernen)
Sprache
- Englisch (32)
Gehört zur Bibliographie
- ja (32)
Schlagworte
- anomalous diffusion (9)
- living cells (4)
- ageing (2)
- dynamics (2)
- infection pathway (2)
- nonergodicity (2)
- physiological consequences (2)
- random-walks (2)
- single-particle tracking (2)
- stochastic processes (2)
- transport (2)
- weak ergodicity breaking (2)
- Fokker-Planck equations (1)
- Levy foraging hypothesis (1)
- Sinai diffusion (1)
- adenoassociated virus (1)
- behavior (1)
- brownian-motion (1)
- cambridge cb4 0wf (1)
- cambs (1)
- coefficient (1)
- coefficients (1)
- confinement (1)
- continuous time random walks (1)
- crowding (1)
- cytoplasm (1)
- diffusion (1)
- dna coiling (1)
- driven diffusive systems (theory) (1)
- dynamics simulation (1)
- endosomal escape (1)
- england (1)
- equation approach (1)
- escherichia-coli (1)
- excluded volume (1)
- first passage (1)
- flight search patterns (1)
- fluctuation-dissipation theorem (1)
- fluctuations (theory) (1)
- fluorescence correlation spectroscopy (1)
- fluorescence photobleaching recovery (1)
- folding kinetics (1)
- fractional dynamics (1)
- fractional dynamics approach (1)
- gel network (1)
- gene-regulation kinetics (1)
- in-vitro (1)
- intermittent chaotic systems (1)
- intracellular-transport (1)
- langevin equation (1)
- levy flights (1)
- membrane (1)
- membrane channel (1)
- milton rd (1)
- mixtures (1)
- models (1)
- monte-carlo (1)
- osmotic-pressure (1)
- photon-counting statistics (1)
- polymer translocation (1)
- polymers (1)
- posttranslational protein translocation (1)
- potential landscape (1)
- quenched energy landscape (1)
- royal soc chemistry (1)
- science park (1)
- search optimization (1)
- single-file diffusion (1)
- single-stranded-dna (1)
- solid-state nanopores (1)
- spatial-organization (1)
- stochastic processes (theory) (1)
- structured polynucleotides (1)
- subdiffusion (1)
- thomas graham house (1)
- time random-walks (1)
- trafficking (1)
- van Hove correlation (1)
Modern microscopic techniques following the stochastic motion of labelled tracer particles have uncovered significant deviations from the laws of Brownian motion in a variety of animate and inanimate systems. Such anomalous diffusion can have different physical origins, which can be identified from careful data analysis. In particular, single particle tracking provides the entire trajectory of the traced particle, which allows one to evaluate different observables to quantify the dynamics of the system under observation. We here provide an extensive overview over different popular anomalous diffusion models and their properties. We pay special attention to their ergodic properties, highlighting the fact that in several of these models the long time averaged mean squared displacement shows a distinct disparity to the regular, ensemble averaged mean squared displacement. In these cases, data obtained from time averages cannot be interpreted by the standard theoretical results for the ensemble averages. Here we therefore provide a comparison of the main properties of the time averaged mean squared displacement and its statistical behaviour in terms of the scatter of the amplitudes between the time averages obtained from different trajectories. We especially demonstrate how anomalous dynamics may be identified for systems, which, on first sight, appear to be Brownian. Moreover, we discuss the ergodicity breaking parameters for the different anomalous stochastic processes and showcase the physical origins for the various behaviours. This Perspective is intended as a guidebook for both experimentalists and theorists working on systems, which exhibit anomalous diffusion.