Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Numerical Study of the 2-Flavour Schwinger Model with Dynamical
  Overlap Hypercube Fermions   We present numerical results for the 2-flavour Schwinger model with dynamical
chiral lattice fermions. We insert an approximately chiral hypercube Dirac
operator into the overlap formula to construct the overlap hypercube operator.
This is an exact solution to the Ginsparg-Wilson relation, with an excellent
level of locality and scaling. Due to its similarity with the hypercubic
kernel, a low polynomial in this kernel provides a numerically efficient Hybrid
Monte Carlo force. We measure the microscopic Dirac spectrum and discuss the
corresponding scale-invariant parameter, which takes a surprising form. This is
an interesting case, since Random Matrix Theory is unexplored for this setting,
where the chiral condensate {\Sigma} vanishes in the chiral limit. We also
measure {\Sigma} and the "pion" mass, in distinct topological sectors. In this
context we discuss and probe the topological summation of observables by
various methods, as well as the evaluation of the topological susceptibility.
The feasibility of this summation is essential for the prospects of dynamical
overlap fermions in QCD.

17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga