Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Propagating rotational jump events drive liquid-liquid transition in
  supercooled liquid water   We observe, at low temperature, the appearance of propagating events that
originate from the inter-conversion between adjacent four and five coordinated
water molecules in supercooled liquid water, resulting in the migration of the
coordination number five in a string-like fashion, creating rotational jumps
along the way. The length of the connected events increases with lowering
temperature. Each propagation event is terminated by a 3-coordinated species,
present in a small number at large supercooling, which interacts cooperatively
with 5-coordinated molecules to annihilate both the species. We find that these
growing dynamical correlations manifest in a divergent-like growth of a
non-linear density response function, \times4(t), which is given by a four
point time correlation function (FPTCF). The locus of the maximum of
\times4(t), when plotted against the time t* of maximum, exhibits a sharp peak
precisely at the temperature where the static response functions (specific
heat, isothermal compressibility) also show similar sharp, divergent-like,
peak. While the decay of population fluctuation time correlation function of
both 4- and 5- coordinated species slows down dramatically and a step-like
feature of the relaxation becomes evident, the lifetime itself of 5-corrdinated
species remains short. These results suggest a new molecular mechanism of low
temperature anomalies and of the liquid-liquid transition in terms of
initiation, growth and termination of propagating jump and inter-conversion
events.

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The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
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The categories of this paper are: eess
7
The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int