Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stick-slip friction and nucleation dynamics of ultra-thin liquid films   We develop the theory for stick-slip motion in ultra-thin liquid films
confined between two moving atomically-flat surfaces. Our model is based on
hydrodynamic equation for the flow coupled to the dynamic order parameter field
describing the ``shear melting and freezing'' of the confined fluid. This model
successfully accounts for observed phenomenology of friction in ultra-thin
films, including periodic and chaotic sequences of slips, transitions from
stick-slip motion to steady sliding.

8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph