Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fluctations and noise in time-resolved light scattering experiments :
  measuring temporally heterogeneous dynamics   We use Time Resolved Correlation (TRC), a recently introduced light
scattering method, to study the dynamics of a variety of jammed, or glassy,
soft materials. The output of a TRC experiment is cI(t,tau), the time series of
the degree of correlation between the speckle patterns generated by the light
scattered at time t and t+tau. We characterize the fluctuations of cI by
calculating their Probability Density Function, their variance as a function of
the lag tau, and their time autocorrelation function. The comparison between
these quantities for a Brownian sample and for jammed materials indicate
unambiguously that the slow dynamics measured in soft glasses is temporally
heterogeneous. The analogies with recent experimental, numerical and
theoretical work on temporal heterogeneity in the glassy dynamics are briefly
discussed.

26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
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The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess