Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lattice Hamiltonian approach to the Schwinger model: further results
  from the strong coupling expansion   We employ exact diagonalization with strong coupling expansion to the
massless and massive Schwinger model. New results are presented for the ground
state energy and scalar mass gap in the massless model, which improve the
precision to nearly $10^{-9} %$. We also investigate the chiral condensate and
compare our calculations to previous results available in the literature.
Oscillations of the chiral condensate which are present while increasing the
expansion order are also studied and are shown to be directly linked to the
presence of flux loops in the system.

28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci