Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-classical pathways of crystallization in colloidal systems   Colloidal systems offer the ideal conditions to study the nucleation process,
both from an experimental viewpoint, due to their relative large size and long
time-scales, and from a modeling point of view, due to the tunability of their
interactions. Here we review some recent works that study the process of
colloidal crystallization from a microscopic perspective. We focus in
particular on non-classical pathways to nucleation where the appearance of the
solid crystals involves fluctuations of two (or more) order parameters. We
interpret the non-classical behavior as a decoupling of positional and
orientational symmetry breaking. We then consider how the nucleation pathway
determines which polymorph is selected upon nucleation from the melt. Moreover
we show how the study of nucleation pathways not only sheds new light on the
microscopic mechanism of nucleation, but also provides important information
regarding its avoidance, thus suggesting a deep link between crystallization
and vitrification.

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The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat