Results 111 to 120 of about 83,346 (245)

Time step rescaling recovers continuous-time dynamical properties for discrete-time Langevin integration of nonequilibrium systems [PDF]

, 2014
When simulating molecular systems using deterministic equations of motion (e.g., Newtonian dynamics), such equations are generally numerically integrated according to a well-developed set of algorithms that share commonly agreed-upon desirable properties.
Chodera, John D., Crooks, Gavin E., Sivak, David A.   +2 more
core   +2 more sources

Agent‐Based Computational Modeling of the Stochastic Dynamic Behavior of Actin Filaments Recapitulates the Homeostatic Cortical Array in Plant Epidermal Cells

Cytoskeleton, EarlyView.
ABSTRACT The homeostatic cortical actin array in plant cells plays important roles in fundamental processes, including intracellular transport, secretion, cell expansion, and cytoplasmic streaming. In response to diverse chemical and mechanical signals, the cortical array can remodel within minutes to assume new configurations or altered filament ...
June Hyung Kim, Weiwei Zhang, Anjali Iyer‐Pascuzzi, Christopher J. Staiger, Taeyoon Kim   +4 more
wiley   +1 more source

Invariant Measure and Universality of the 2D Yang–Mills Langevin Dynamic

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We prove that the Yang–Mills (YM) measure for the trivial principal bundle over the two‐dimensional torus, with any connected, compact structure group, is invariant for the associated renormalised Langevin dynamic. Our argument relies on a combination of regularity structures, lattice gauge‐fixing and Bourgain's method for invariant measures ...
Ilya Chevyrev, Hao Shen
wiley   +1 more source

Trotter Derivation of Algorithms for Brownian and Dissipative Particle Dynamics

, 2007
This paper focuses on the temporal discretization of the Langevin dynamics, and on different resulting numerical integration schemes. Using a method based on the exponentiation of time dependent operators, we carefully derive a numerical scheme for the ...
Allen M. P., Fabrice Thalmann, Jean Farago   +2 more
core   +1 more source

Energy Landscapes in Chemical Reactions and Transport

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

On fast and slow Earth’s magnetospheric dynamics during geomagnetic storms: a stochastic Langevin approach

Journal of Space Weather and Space Climate, 2018
The Earth’s magnetosphere responds to the external changes of interplanetary magnetic field and solar wind conditions showing a multiscale dynamics, manifesting in the occurrence of fluctuations over a very wide range of timescales.
Alberti Tommaso, Consolini Giuseppe, De Michelis Paola, Laurenza Monica, Marcucci Maria Federica   +4 more
doaj   +1 more source

Anomalous fluctuation relations [PDF]

, 2013
We study Fluctuation Relations (FRs) for dynamics that are anomalous, in the sense that the diffusive properties strongly deviate from the ones of standard Brownian motion. We first briefly review the concept of transient work FRs for stochastic dynamics
Alemany, Balescu, Barkai, Barthelemy, Baule, Beck, Bochkov, Bochkov, Boksenbojm, Bouchaud, Brilliantov, Brockmann1, Bustamante, Bénichou, Bödeker, Campisi, Chaudhury, Chechkin, Ciliberto, Crooks, Dieterich, Douarche, Dunn, Esposito, Esposito, Eule, Evans, Evans, Evans, Evans, Fogedby, Friedl, Gallavotti, Gallavotti, Gallavotti, Gorenflo, Harris, Harris, Hartmann, Hatano, Hayashi, Jaksic, Jarzynski, Jarzynski, Jarzynski, Jepps, Klafter, Klafter, Klages, Klages, Kubo, Kubo, Kukla, Kurchan, Lauffenburger, Li, Lutz, Lämmermann, Mai, Martin, Metzler, Metzler, Metzler, Metzler, Ohkuma, Panja, Podlubny, Porra, Risken, Ritort, Rondoni, Sagawa, Samko, Samorodnitsky, Scalas, Scher, Schneider, Seifert, Seifert, Sellitto, Semmrich, Shlesinger, Sokolov, Solomon, Song, Stokes, Takagi, Taloni, Touchette, Touchette, Toyabe, Upadhyaya, Van den Broeck, van Zon, van Zon, Viswanathan, Wang, Zamponi, Zamponi   +98 more
core   +1 more source

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

Contributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik, H. M. Thomas, M. Kretschmer, M. Thoma   +3 more
wiley   +1 more source

Brownian markets

, 2013
Financial market dynamics is rigorously studied via the exact generalized Langevin equation. Assuming market Brownian self-similarity, the market return rate memory and autocorrelation functions are derived, which exhibit an oscillatory-decaying behavior
Baaquie B E, Bachelier L, Black F, Cont R, Dana R A, Doob J L, Einstein A, Frank T D, Gopikrishnan P, Gopikrishnan P, Gu G F, Ito K, Lee M H, Mantegna R N, McCauley J L, Mori H, Mu G H, Pechukas P, Plerou V, Plerou V, Rachev S T, Rostek S, Roumen Tsekov, Rubin R J, Rubin R J, Stratonovich R L, Sznajd-Weron K, Takahashi M, Tsekov R, Tsekov R, Tsekov R, Tsekov R, Tsekov R, Voit J, Voit J, Zhou W X, Zwanzig R   +36 more
core   +1 more source

A stochastic golden rule and quantum Langevin equation for the low density limit [PDF]

, 2002
A rigorous derivation of quantum Langevin equation from microscopic dynamics in the low density limit is given. We consider a quantum model of a microscopic system (test particle) coupled with a reservoir (gas of light Bose particles) via interaction of ...
A. N. PECHEN, Accardi L., Bagarello F., I. V. VOLOVICH, L. ACCARDI   +4 more
core   +2 more sources