Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Statistical Properties of Exciton Fine Structure Splittings and
  Polarization Angles in Quantum Dot Ensembles   We propose an effective model to describe the statistical properties of
exciton fine structure splitting (FSS) and polarization angle of quantum dot
ensembles (QDEs). We derive the distributions of FSS and polarization angle for
QDEs and show that their statistical features can be fully characterized using
at most three independent measurable parameters. The effective model is
confirmed using atomistic pseudopotential calculations as well as experimental
measurements for several rather different QDEs. The model naturally addresses
three fundamental questions that are frequently encountered in theories and
experiments: (I) Why the probability of finding QDs with vanishing FSS is
generally very small? (II) Why FSS and polarization angle differ dramatically
from QD to QD? and (III) Is there any direct connection between FSS, optical
polarization and the morphology of QDs? The answers to these fundamental
questions yield a completely new physical picture for understanding optical
properties of QDEs.

27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph