Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A dynamical study of phase fluctuations and their critical slowing down
  in amorphous superconducting films   We report a comprehensive study of the complex AC conductance of amorphous
superconducting InO$_x$ thin films. Using a novel broadband microwave `Corbino'
spectrometer we measure the explicit frequency dependency of the complex
conductance and the phase stiffness over a range from 0.21 GHz to 15 GHz at
temperatures down to 350 mK. Dynamic AC measurements are sensitive to the
temporal correlations of the superconducting order parameter in the fluctuation
range above $T_c$. Among other aspects, we explicitly demonstrate the critical
slowing down of the characteristic fluctuation rate on the approach to the
superconducting state and show that its behavior is consistent with vortex-like
phase fluctuations and a phase ordering scenario of the transition.

22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
2
The categories of this paper are: math
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas