Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shear Transformation Zones: State Determined or Protocol Dependent?   The concept of a Shear Transformation Zone (STZ) refers to a region in an
amorphous solid that undergoes a plastic event when the material is put under
an external mechanical load. An important question that had accompanied the
development of the theory of plasticity in amorphous solids for many years now
is whether an STZ is a {\em region} existing in the material (which can be
predicted by analyzing the unloaded material), or is it an {\em event} that
depends on the loading protocol (i.e., the event cannot be predicted without
following the protocol itself). In this Letter we present strong evidence that
the latter is the case. Infinitesimal changes of protocol result in
macroscopically big jumps in the positions of plastic events, meaning that
these can never be predicted from considering the unloaded material.

21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys