Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two complex problems on the lattice: transport coefficients and finite
  chemical potential   After a few remarks about the problem of extracting transport coefficients
from lattice QCD calculations, I report on recent developments in applying
stochastic quantization and complex Langevin dynamics to field theories with a
complex action due to a nonzero chemical potential. First results demonstrate
that the sign problem poses no obstacle for this approach, even in the
thermodynamic limit. I conclude with a comparison of two simple one-link
models, describing a euclidean system at finite chemical potential and a
Minkowski system in real time.

34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn