Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Metal-insulator transition in an one-dimensional half-filled interacting
  mesoscopic ring with spinless fermions: Exact results   We calculate persistent current of one-dimensional rings of fermions
neglecting the spin degrees of freedom considering only nearest-neighbor
Coulomb interactions with different electron fillings in both ordered and
disordered cases. We treat the interaction exactly and find eigenenergies by
exact diagonalization of many-body Hamiltonian and compute persistent current
by numerical derivative method. We also determine Drude weight to estimate the
conducting nature of the system. From our numerical results, we obtain a
metal-insulator transition in half-filled case with increasing correlation
strength U but away from half-filling no such transition is observed even for
large U.

25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat