Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Screening Lengths in Ionic Fluids   The decay of correlations in ionic fluids is a classical problem in soft
matter physics that underpins applications ranging from controlling colloidal
self-assembly to batteries and supercapacitors. The conventional wisdom, based
on analyzing a solvent-free electrolyte model, suggests that all correlation
functions between species decay with a common decay length in the asymptotic
far field limit. Nonetheless, a solvent is present in many electrolyte systems.
We show using an analytical theory and molecular dynamics simulations that
multiple decay lengths can coexist in the asymptotic limit as well as at
intermediate distances once a hard sphere solvent is considered. Our analysis
provides an explanation for the recently observed discontinuous change in the
structural force across a thin film of ionic liquid-solvent mixtures as the
composition is varied, as well as reframes recent debates in the literature
about the screening length in concentrated electrolytes.

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The categories of this paper are: math
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin