Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fluctuations in a mesoscopic superconducting ring: resonant behavior of
  conductivity and specific heat in two mode critical regime   The critical fluctuations in a mesoscopic superconducting ring are studied
within the Ginzburg-Landau approach. The nonlocal conductivity as well as the
specific heat are calculated as functions of the magnetic flux $\Phi$ through
the ring. At $\Phi=\Phi_0/2$ two low-energy eigenstates become degenerate and
near this point the behavior of fluctuations-dependent quantities change
dramatically: both the zero Fourier component $\sigma_0$ of the fluctuation
conductivity and the specific heat become non-monotonic functions of
$|\Phi-\Phi_0/2|$ with rather special resonant structure.

15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
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
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex