Results 71 to 80 of about 83,346 (245)

Langevin dynamics and decoherence of heavy quarks at high temperatures

, 2015
A Langevin equation of heavy quarks in high-temperature quark-gluon plasma is derived. The dynamics of heavy quark color is coupled with the phase space dynamics and causes a macroscopic superposition state of heavy quark momentum.
Akamatsu, Yukinao
core   +1 more source

Quantum Langevin Dynamics for Optimization

Communications in Mathematical Physics
52 pages, 1 table, 25 ...
Zherui Chen, Yuchen Lu, Hao Wang, Yizhou Liu, Tongyang Li   +4 more
openaire   +3 more sources

Uncertainty quantification for generalized Langevin dynamics [PDF]

The Journal of Chemical Physics, 2016
We present efficient finite difference estimators for goal-oriented sensitivity indices with applications to the generalized Langevin equation (GLE). In particular, we apply these estimators to analyze an extended variable formulation of the GLE where other well known sensitivity analysis techniques such as the likelihood ratio method are not ...
Eric J. Hall, Markos A. Katsoulakis, Luc Rey-Bellet   +2 more
openaire   +4 more sources

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Stability of a Nonlinear Langevin System of ML-Type Fractional Derivative Affected by Time-Varying Delays and Differential Feedback Control

Fractal and Fractional, 2022
The Langevin system is an important mathematical model to describe Brownian motion. The research shows that fractional differential equations have more advantages in viscoelasticity.
Kaihong Zhao
doaj   +1 more source

Quantification of coarse-graining error in Langevin and overdamped Langevin dynamics

, 2018
In molecular dynamics and sampling of high dimensional Gibbs measures coarse-graining is an important technique to reduce the dimensionality of the problem.
Duong, M. H., Lamacz, A., Peletier, M. A., Schlichting, A., Sharma, U.   +4 more
core   +2 more sources

Dynamics of ions in the selectivity filter of the KcsA channel [PDF]

, 2013
The statistical and dynamical properties of ions in the selectivity filter of the KcsA ion channel are considered on the basis of molecular dynamics (MD) simulations of the KcsA protein embedded in a lipid membrane surrounded by an ionic solution.
A. Laio, A.D. Mackerell, A.D. MacKerell, A.S. Adelman, B. Eisenberg, D.A. Doyle, D.G. Luchinsky, E. Piccinini, G. Goodyear, G.R. Kneller, I.A. Khovanov, J.B. Klauda, J.C. Phillips, L. Schimansky-Geier, M. Tuckerman, M.G. Kurnikova, M.I. Dykman, M.P. Allen, P.M. Rodger, P.V.E. McClintock, S. Bernèche, S. Bernèche, S. Kumar, S. Nordholm, S.C. Kou, S.M. Cosseddu, S.Yu. Noskov, U. Essmann, Y. Zhou   +28 more
core   +3 more sources

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Data clustering based on Langevin annealing with a self-consistent potential

, 2018
This paper introduces a novel data clustering algorithm based on Langevin dynamics, where the associated potential is constructed directly from the data.
Lafata, Kyle, Liu, Jian-Guo, Yin, Fang-Fang, Zhou, Zhennan   +3 more
core   +1 more source

QBP1 Peptide as a Potential Anti‐Amyloidogenic Therapy for Type 2 Diabetes: An In Vitro Study

Advanced Science, EarlyView.
The anti‐amyloidogenic peptide QBP1 effectively halts human islet amyloid polypeptide (hIAPP) aggregation, preventing the formation of toxic β‐structured intermediates. Through a combination of biophysical assays, molecular dynamics, and cell‐based studies, QBP1 is shown to preserve β‐cell viability and metabolic homeostasis, positioning it as a ...
María M. Tejero‐Ojeda, Ada Bernaus Vives, Michał Wojciechowski, Dinh Quoc Huy Pham, Mateusz Chwastyk, Mario Vallejo, Anna Novials, Douglas V. Laurents, Mariano Carrión‐Vázquez   +8 more
wiley   +1 more source