Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical central peak and spinon deconfinement in frustrated spin
  chains   Studying the dynamical spin structure factor in frustrated spin chains with
spontaneously dimerized ground state we show that besides the gapped spin-wave
excitations there appears at finite temperatures also a sharp central peak. The
latter can be attributed to deconfined spinons, accounted well within the
variational approach. The central peak remains well pronounced within the local
spin dynamics and may be relevant for experiments on materials with 1D
frustrated spin chains.

20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph