Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spinning strings in AdS_3 x S^3 with NS-NS flux   The sigma model describing closed strings rotating in AdS_3 x S^3 is known to
reduce to the one-dimensional Neumann-Rosochatius integrable system. In this
article we show that closed spinning strings in AdS_3 x S^3 x T^4 in the
presence of NS-NS three-form flux can be described by an extension of the
Neumann-Rosochatius system. We consider closed strings rotating with one spin
in AdS_3 and two different angular momenta in S^3. For a class of solutions
with constant radii we find the dependence of the classical energy on the spin
and the angular momenta as an expansion in the square of the 't Hooft coupling
of the theory.

19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn