Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-equilibrium statistical field theory for classical particles: Impact
  of correlated initial conditions on non-ideal gases   We use the non-equilibrium statistical field theory for classical particles
recently developed by Mazenko and Das and Mazenko, together with the free
generating functional for particles initially correlated in phase space derived
in Bartelmann et al. to study the impact of initial correlations on the
equation of state of real gases. We first show that we can reproduce the well
known van der Waals equation of state for uncorrelated initial conditions using
this approach. We then impose correlated initial conditions and study their
qualitative and quantitative effect on the equation of state of a van der Waals
gas. The correlations impose a significant correction to the pressure of an
ideal gas which is an order of magnitude larger than the correction due to
particle interactions.

26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin