Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical initialization of hole spins in p-doped quantum dots:
  orientation efficiency and loss of coherence   We study theoretically the recently proposed hole spin initialization scheme
for $p$-doped quantum well or dot systems via coupling to trion states with
sub-picosecond circularly polarized laser pulses. We analyze the efficiency of
spin initialization an predict the intrinsic spin coherence loss due to the
pulse excitation itself as well as the phonon-induced spin dephasing, both
taking place on the timescale of the driving laser pulse. We show that the
ratio of the degree of dephasing to the achieved orientation effect does not
depend on the pulse area but is sensitive to the temperature and detuning. The
optimal excitation parameters are identified.

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The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin