Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large-N solutions of the Heisenberg and Hubbard-Heisenberg models on the
  anisotropic triangular lattice: application to Cs$_2$CuCl$_4$ and to the
  layered organic superconductors $\kappa$-(BEDT-TTF)$_2$X   We solve the Sp(N) Heisenberg and SU(N) Hubbard-Heisenberg models on the
anisotropic triangular lattice in the large-N limit. These two models may
describe respectively the magnetic and electronic properties of the family of
layered organic materials $\kappa$-(BEDT-TTF)$_2$X. The Heisenberg model is
also relevant to the frustrated antiferromagnet, Cs$_2$CuCl$_4$. We find rich
phase diagrams for each model. The Sp(N) antiferromagnet is shown to have five
different phases as a function of the size of the spin and the degree of
anisotropy of the triangular lattice. The effects of fluctuations at finite-N
are also discussed. For parameters relevant to Cs$_2$CuCl$_4$ the ground state
either exhibits incommensurate spin order, or is in a quantum disordered phase
with deconfined spin-1/2 excitations and topological order. The SU(N)
Hubbard-Heisenberg model exhibits an insulating dimer phase, an insulating box
phase, a semi-metallic staggered flux phase (SFP), and a metallic uniform
phase. The uniform and SFP phases exhibit a pseudogap. A metal-insulator
transition occurs at intermediate values of the interaction strength.

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The categories of this paper are: chem-ph
16
The categories of this paper are: stat
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The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: econ
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
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The categories of this paper are: mtrl-th