Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charge transport in the Hubbard model at high temperatures: triangular
  versus square lattice   High-temperature bad-metal transport has been recently studied both
theoretically and in experiments as one of the key signatures of strong
electronic correlations. Here we use the dynamical mean field theory (DMFT) and
its cluster extensions, as well as the finite-temperature Lanczos method (FTLM)
to explore the influence of lattice frustration on the thermodynamic and
transport properties of the Hubbard model at high temperatures. We consider the
triangular and the square lattice at half-filling and at 15\% hole-doping. We
find that for $T \gtrsim 1.5t$ the self-energy becomes practically local, while
the finite-size effects become small at lattice-size $4 \times 4$ for both
lattice types and doping levels. The vertex corrections to optical
conductivity, which are significant on the square lattice even at high
temperatures, contribute less on the triangular lattice. We find approximately
linear temperature dependence of dc resistivity in doped Mott insulator for
both types of lattices.

22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org