Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Elucidating the sign problem through noise distributions   Due to the presence of light pions in the theory, lattice QCD at finite
densities suffers from issues with noise in both grand canonical and canonical
formulations. We study two different formulations of the Nambu-Jona-Lasinio
model reduced to 2+1 dimensions at large N, where N is the number of flavors.
At finite chemical potential one formulation has a severe sign problem and a
fermion correlator which displays a broad probability distribution with small
mean. In the other we find no sign problem and a distribution amenable to the
cumulant expansion techniques developed in earlier work.

10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga