Anti-Stokes photoluminescence (ASPL) is an up-conversion phonon-assisted process of
radiative recombination of photoexcited charge carriers when the ASPL photon energy is …

The stochastic trajectories of molecules in living cells, as well as the dynamics in many other
complex systems, often exhibit memory in their path over long periods of time. In addition …

Despite the success of fractional Brownian motion (fBm) in modeling systems that exhibit
anomalous diffusion due to temporal correlations, recent experimental and theoretical …

Motivated by various recent experimental findings, we propose a dynamical model of
intermittently self-propelled particles: active particles that recurrently switch between two …

Layered van-der-Waals materials with hexagonal symmetry offer an extra degree of freedom
to their electrons, the so-called valley index or valley pseudospin, which behaves …

We analyse the transport of diffusive particles that switch between mobile and immobile
states with finite rates. We focus on the effect of advection on the density functions and mean …

Interlayer exciton diffusion is studied in atomically reconstructed MoSe 2/WSe 2
heterobilayers with suppressed disorder. Local atomic registry is confirmed by characteristic …

Excitons in semiconductors can form a variety of collective states leading to different regimes
of exciton propagation. Here we theoretically demonstrate the possibility to reach the …

By means of analytical calculations and numerical simulations, we study the diffusion
properties in quasi-two-dimensional structures with two exciton subsystems with an …

We recently presented a quantitative model to explain the particle-size dependence of
photoluminescence (PL) quantum yields and revealed that exciton quenching is not …