Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simulations of nonradiative processes in semiconductor nanocrystals   The description of carrier dynamics in spatially confined semiconductor
nanocrystals (NCs), which have enhanced electron-hole and exciton-phonon
interactions, is a great challenge for modern computational science. These NCs
typically contain thousands of atoms and tens of thousands of valence electrons
with a discrete spectrum at low excitation energies, similar to atoms and
molecules, that converges to the continuum bulk limit at higher energies.
Computational methods developed for molecules are limited to very small
nanoclusters, and methods for bulk systems with periodic boundary conditions
are not suitable due to the lack of translational symmetry in NCs. This
perspective focuses on our recent efforts in developing a unified atomistic
model based on the semiempirical pseudopotential approach, which is
parametrized by first-principles calculations and validated against
experimental measurements, to describe two of the main nonradiative relaxation
processes of quantum confined excitons: exciton cooling and Auger
recombination. We focus on the description of both electron-hole and
exciton-phonon interactions in our approach and discuss the role of size,
shape, and interfacing on the electronic properties and dynamics for II-VI and
III-V semiconductor NCs.

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The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: physics