Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dislocations Jam At Any Density   Crystalline materials deform in an intermittent way via dislocation-slip
avalanches. Below a critical stress, the dislocations are jammed within their
glide plane due to long-range elastic interactions and the material exhibits
plastic response, while above this critical stress the dislocations are mobile
(the unjammed phase) and the material fails. We use dislocation dynamics and
scaling arguments in two dimensions to show that the critical stress grows with
the square root of the dislocation density. Consequently, dislocations jam at
any density, in contrast to granular materials, which only jam below a critical
density.

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The categories of this paper are: stat
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph