Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pseudogap and Spin Fluctuations in the Normal State of Electron-Doped
  Cuprates   We present reliable many-body calculations for the t-t'-t''-U Hubbard model
that explain in detail the results of recent angle-resolved photoemission
experiments on electron-doped high-temperature superconductors. The origin of
the pseudogap is traced to two-dimensional antiferromagnetic spin fluctuations
whose calculated temperature dependent correlation length also agrees with
recent neutron scattering measurements. We make specific predictions for
photoemission, for neutron scattering and for the phase diagram.

12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph