Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of Size Dispersity On the Melting Transition   We present a molecular dynamics simulation study of the liquid-solid
transition in a two dimensional system consisting of particles of two different
sizes interacting via a truncated Lennard-Jones potential. We work with equal
number of particles of each kind and the dispersity $\Delta$ in the sizes of
the particles is varied by changing the ratio of the particle sizes only. For
the monodisperse case ($\Delta = 0$) and for small values of $\Delta$, we find
a first order liquid-solid transition on increasing the volume fraction $\rho$
of the particles . As we increase $\Delta$, the first-order transition
coexistence region weakens gradually and completely disappears at high
dispersities around $\Delta = 0.10$ . At these values of dispersity the high
density phase lacks long range translational order but possesses orientational
order with a large but finite correlation length. The consequences of this
effect of dispersity on the glass transition and on the melting transition in
general are discussed.

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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-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: hep-ex
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The categories of this paper are: physics
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: math
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-th