Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunneling into a two-dimensional electron system in a strong magnetic
  field   We investigate the properties of the one-electron Green's function in an
interacting two-dimensional electron system in a strong magnetic field, which
describes an electron tunneling into such a system. From finite-size
diagonalization, we find that its spectral weight is suppressed near zero
energy, reaches a maximum at an energy of about $0.2e^{2}/\epsilon l_{c}$, and
decays exponentially at higher energies. We propose a theoretical model to
account for the low-energy behavior. For the case of Coulomb interactions
between the electrons, at even-denominator filling factors such as $\nu=1/2$,
we predict that the spectral weight varies as $e^{-\omega_0/|\omega|}$, for
$\omega\rightarrow 0$.

11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th