Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kinetics of the glass transition of fragile soft colloidal suspensions   Microscopic relaxation timescales are estimated from the autocorrelation
functions obtained by dynamic light scattering experiments for Laponite
suspensions with different concentrations ($C_{L}$), added salt concentrations
($C_{S}$) and temperatures ($T$). It has been shown in an earlier work [Soft
Matter, 10, 3292-3300 (2014)] that the evolutions of relaxation timescales of
colloidal glasses can be compared with molecular glass formers by mapping the
waiting time ($t_{w}$) of the former with the inverse of thermodynamic
temperature ($1/T$) of the latter. In this work, the fragility parameter $D$,
which signifies the deviation from Arrhenius behavior, is obtained from fits to
the time evolutions of the structural relaxation timescales. For the Laponite
suspensions studied in this work, $D$ is seen to be independent of $C_{L}$ and
$C_{S}$, but is weakly dependent on $T$. Interestingly, the behavior of $D$
corroborates the behavior of fragility in molecular glass formers with respect
to equivalent variables. Furthermore, the stretching exponent $\beta$, which
quantifies the width $w$ of the spectrum of structural relaxation timescales is
seen to depend on $t_{w}$. A hypothetical Kauzmann time $t_{k}$, analogous to
the Kauzmann temperature for molecular glasses, is defined as the timescale at
which $w$ diverges. Corresponding to the Vogel temperature defined for
molecular glasses, a hypothetical Vogel time $t^{\infty}_{\alpha}$ is also
defined as the time at which the structural relaxation time diverges.
Interestingly, a correlation is observed between $t_{k}$ and
$t^{\infty}_{\alpha}$, which is remarkably similar to that known for fragile
molecular glass formers. A coupling model that accounts for the
$t_{w}$-dependence of the stretching exponent is used to analyse and explain
the observed correlation between $t_{k}$ and $t^{\infty}_{\alpha}$.

23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph