132 citations · 932 across the 29 of their papers we have counts for
6 papers · 1 filter
Exciton diffusion in monolayer semiconductors with suppressed disorder
Jonas Zipfel, Marvin Kulig, Raül Perea-Causín +8
Tightly bound excitons in monolayer semiconductors represent a versatile platform to study two-dimensional propagation of neutral quasiparticles. Their intrinsic properties, howeve…
Negative excitonic diffusion in transition metal dichalcogenides
Roberto Rosati, Raül Perea-Causín, Samuel Brem +1
While exciton relaxation in transition metal dichalcogenides (TMDs) has been intensively studied, spatial exciton propagation has received only little attention - in spite of being…
Many-field Inflation: Universality or Prior Dependence?
Perseas Christodoulidis, Diederik Roest, Robert Rosati
We investigate the observational signatures of many-field inflation and present analytic expressions for the spectral index as a function of the prior. For a given prior we employ…
Exciton propagation and halo formation in two-dimensional materials
Raul Perea-Causin, Samuel Brem, Roberto Rosati +6
The interplay of optics, dynamics and transport is crucial for the design of novel optoelectronic devices, such as photodetectors and solar cells. In this context, transition metal…
Multi-field Inflation in High-Slope Potentials
Vikas Aragam, Sonia Paban, Robert Rosati
We present two families of multi-field potentials that support inflation while satisfying the refined de Sitter and the distance swampland conjectures. Both families feature Planck…
Spatiotemporal dynamics of Coulomb-correlated carriers in semiconductors
F. Lengers, R. Rosati, T. Kuhn +1
When the excitation of carriers in real space is focused down to the nanometer scale, the carrier system can no longer be viewed as homogeneous and ultrafast transport of the excit…