Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-equilibrium first order transition marks the mechanical failure of
  glasses   Glasses acquire their solid-like properties by cooling from the supercooled
liquid via a continuous transition known as the glass transition. Recent
research on soft glasses indicates that besides temperature, another route to
liquify glasses is by application of stress that forces relaxation and flow.
Here we provide experimental evidence that the stress-induced onset of flow of
glasses occurs via a sharp first order-like transition. Using simultaneous
x-ray scattering during the oscillatory rheology of a colloidal glass, we
identify a sharp symmetry change from anisotropic solid to isotropic liquid
structure at the transition from the linear to the nonlinear regime.
Concomitantly, intensity fluctuations sharply acquire liquid distributions.
These observations identify the yielding of glasses to increasing stress as
sharp affine-to-nonaffine transition, providing a new conceptual paradigm of
the yielding of this technologically important class of materials, and offering
new perspectives on the glass transition.

12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg