Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implementation of kinetics of phase transitions into hydrocode for
  simulation of laser ablation   We model an interaction of femtosecond laser pulses (800 nm, 100 fs, 1-100
TW/cm$^2$) with metal targets (Al, Au, Cu, and Ni). A detailed analysis of
laser-induced phase transitions, melting wave propagation and material
decomposition is performed using a thermodynamically complete two-temperature
equation of state with stable and metastable phases. Material evaporation from
the surface of the target and fast melting wave propagation into the bulk are
observed. On rarefaction, the liquid phase becomes metastable and its lifetime
is estimated using the theory of homogeneous nucleation. Mechanical
fragmentation of the target material at high strain rates is also possible
because of void growth and confluence. In our simulation several ablation
mechanisms are observed but the major output of the material is found to
originate from the metastable liquid state. It can be decomposed either into a
liquid-gas mixture near the critical point, or into droplets at high strain
rates and negative pressure. The simulation results correlate with available
experiments.

24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys