Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microscopic Theory of the Influence of Strong Attractive Forces on the
  Activated Dynamics of Dense Glass and Gel Forming Fluids   We theoretically study the non-monotonic (re-entrant) activated dynamics
associated with a repulsive glass to fluid to attractive glass transition in
high density particle suspensions interacting via strong short range attractive
forces. The classic theoretical projection approximation that replaces all
microscopic forces by a single effective force determined solely by equilibrium
pair correlations is revisited based on the projectionless dynamic theory (PDT)
that avoids force projection. A hybrid-PDT is formulated that explicitly
quantifies how attractive forces induce dynamical constraints, while singular
hard core interactions are treated based on the projection approach. Both the
effects of interference between repulsive and attractive forces, and structural
changes due to attraction-induced bond formation that competes with caging, are
included. Combined with the microscopic Elastically Collective Nonlinear
Langevin Equation (ECNLE) theory of activated relaxation, the resultant
approach appears to properly capture both the re-entrant dynamic crossover
behavior and the strong non-monotonic variation of the activated structural
relaxation time with attraction strength and range at very high volume
fractions. Qualitative differences with ECNLE theory-based results that adopt
the full projection approximation are identified, and testable predictions
made. The new formulation appears qualitatively consistent with multiple
experimental and simulation studies, and provides a new perspective for the
overall problem that is rooted in activated motion and interference between
repulsive and attractive forces. This is conceptually distinct from empirical
shifting or other ad hoc modifications of ideal mode coupling theory which do
not take into account activated dynamics. Implications for thermal glass
forming liquids are briefly discussed.

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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: q-alg