Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Control of spin dynamics in a two-dimensional electron gas by
  electromagnetic dressing   We solved the Schr\"odinger problem for a two-dimensional electron gas (2DEG)
with the Rashba spin-orbit interaction in the presence of a strong
high-frequency electromagnetic field (dressing field). The found eigenfunctions
and eigenenergies of the problem are used to describe the spin dynamics of the
dressed 2DEG within the formalism of the density matrix response function.
Solving the equations of spin dynamics, we show that the dressing field can
switch the spin relaxation in the 2DEG between the cases corresponding to the
known Elliott-Yafet and D'yakonov-Perel' regimes. As a result, the spin
properties of the 2DEG can be tuned by a high-frequency electromagnetic field.
The present effect opens an unexplored way for controlling the spin with light
and, therefore, forms the physical prerequisites for creating light-tuned
spintronics devices.

6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph