Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Local and global avalanches in a 2D sheared granular medium   We present the experimental and numerical studies of a 2D sheared amorphous
material constituted of bidisperse photo-elastic disks. We analyze the
statistics of avalanches during shear including the local and global
fluctuations in energy and changes in particle positions and orientations. We
find scale free distributions for these global and local avalanches denoted by
power-laws whose cut-offs vary with inter-particle friction and packing
fraction. Different exponents are found for these power-laws depending on the
quantity from which variations are extracted. An asymmetry in time of the
avalanche shapes is evidenced along with the fact that avalanches are mainly
triggered from the shear bands. A simple relation independent from the
intensity, is found between the number of local avalanches and the global
avalanches they form. We also compare these experimental and numerical results
for both local and global fluctuations to predictions from meanfield and
depinning theories.

16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th