Microscopic dynamics and viscoelasticity of vitrimers

A Perego, D Lazarenko, M Cloitre, F Khabaz - Macromolecules, 2022 - ACS Publications
We implement a hybrid molecular dynamics/Monte Carlo simulation to study the microscopic
dynamics and the macroscopic rheology of vitrimers with a fast bond exchange rate. We …

Triggering Gaussian-to-Exponential Transition of Displacement Distribution in Polymer Nanocomposites via Adsorption-Induced Trapping

M Hu, H Chen, H Wang, S Burov, E Barkai, D Wang - Acs Nano, 2023 - ACS Publications
In many disordered systems, the diffusion of classical particles is described by a
displacement distribution P (x, t) that displays exponential tails instead of Gaussian statistics …

Non-Gaussian diffusion near surfaces

A Alexandre, M Lavaud, N Fares, E Millan, Y Louyer… - Physical Review Letters, 2023 - APS
We study the diffusion of particles confined close to a single wall and in double-wall planar
channel geometries where the local diffusivities depend on the distance to the boundaries …

Comment on “Fickian Non-Gaussian Diffusion in Glass-Forming Liquids”

L Berthier, E Flenner, G Szamel - Physical Review Letters, 2023 - APS
A recent Letter [1] examined the statistics of individual particles displacements Δx (t) over
time t in two-dimensional glass formers and concluded that the corresponding probability …

Anomalous lateral diffusion of lipids during the fluid/gel phase transition of a lipid membrane

A Kumar, S Daschakraborty - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
A lipid membrane undergoes a phase transition from fluid to gel phase upon changing
external thermodynamic conditions, such as decreasing temperature and increasing …

When physics meets chemistry at the dynamic glass transition

H Lu - Reports on Progress in Physics, 2024 - iopscience.iop.org
Can the laws of physics be unified? One of the most puzzling challenges is to reconcile
physics and chemistry, where molecular physics meets condensed-matter physics, resulting …

Being Heterogeneous Is Advantageous: Extreme Brownian Non-Gaussian Searches

V Sposini, S Nampoothiri, A Chechkin, E Orlandini… - Physical Review Letters, 2024 - APS
Redundancy in biology may be explained by the need to optimize extreme searching
processes, where one or few among many particles are requested to reach the target like in …

[HTML][HTML] Extending the analogy between intracellular motion in mammalian cells and glassy dynamics

B Corci, O Hooiveld, AM Dolga, C Åberg - Soft Matter, 2023 - pubs.rsc.org
How molecules, organelles, and foreign objects move within living cells has been studied in
organisms ranging from bacteria to human cells. In mammalian cells, in particular, cellular …

Brownian non-Gaussian diffusion of self-avoiding walks

B Marcone, S Nampoothiri, E Orlandini… - Journal of Physics A …, 2022 - iopscience.iop.org
Abstract Three-dimensional Monte Carlo simulations provide a striking confirmation to a
recent theoretical prediction: the Brownian non-Gaussian diffusion of critical self-avoiding …

Efficient formulation of multitime generalized quantum master equations: Taming the cost of simulating 2D spectra

T Sayer, A Montoya-Castillo - The Journal of Chemical Physics, 2024 - pubs.aip.org
Modern 4-wave mixing spectroscopies are expensive to obtain experimentally and
computationally. In certain cases, the unfavorable scaling of quantum dynamics problems …