Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tuning of the hole spin relaxation time in single self-assembled
  In$_{1-x}$Ga$_x$As/GaAs quantum dots by electric field   We investigate the electric field tuning of the phonon-assisted hole spin
relaxation in single self-assembled In$_{1-x}$Ga$_{x}$As/GaAs quantum dots,
using an atomistic empirical pseudopotential method. We find that the electric
field along the growth direction can tune the hole spin relaxation time for
more than one order of magnitude. The electric field can prolong or shorten the
hole spin lifetime and the tuning shows an asymmetry in terms of the field
direction. The asymmetry is more pronounced for the taller the dot. The results
show that the electric field is an effective way to tune the hole
spin-relaxation in self-assembled QDs.

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The categories of this paper are: q-bio
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The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: physics
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg