Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A consistent statistical treatment of the renormalized mean-field t-J
  model   A variational treatment of the Gutzwiller - renormalized t-J Hamiltonian
combined with the mean-field (MF) approximation is proposed, with a
simultaneous inclusion of additional consistency conditions. Those conditions
guarantee that the averages calculated variationally represent true mean-field
expectation values. This is not ensured a priori when the effective Hamiltonian
contains renormalization factors which depend on the mean-field averages. A
comparison with previous mean-field treatments is made for both superconducting
(d-RVB) and normal states and encompasses calculations of both the
superconducting gap and the renormalized hopping amplitudes, as well as the
electronic structure. The $C_{4v}$-symmetry breaking in the normal phase - the
Pomeranchuk instability (PI) - is also analyzed.

13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph