Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Short-ranged attractions in jammed liquids: How cooling can melt a glass   We demonstrate that an extended picture of kinetic constraints in
glass-forming liquids is sufficient to explain dynamic anomalies observed in
dense suspensions of strongly attracting colloidal particles. We augment a
simple model of heterogeneous relaxation with static attractions between
facilitating excitations, in a way that mimics the structural effect of
short-ranged interparticle attractions. The resulting spatial correlations
among facilitated and unfacilitated regions give rise to new relaxation
mechanisms that account for non-monotonic dependence of relaxation times on
attraction strength as well as logarithmic decay of density correlations in
time. These unusual features are a simple consequence of spatial segregation of
kinetic constraints, suggesting an alternative physical perspective on
attractive colloids than that suggested by mode-coupling theory. Based on the
behavior of our model, we predict a crossover from super-Arrhenius to Arrhenius
temperature dependence as attractions become dominant at fixed packing
fraction.

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The categories of this paper are: math-ph
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio