Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Critical Point at Finite Doping in the 2D Hubbard Model: A
  Dynamical Cluster Quantum Monte Carlo Study   We explore the Matsubara quasiparticle fraction and the pseudogap of the
two-dimensional Hubbard model with the dynamical cluster quantum Monte Carlo
method. The character of the quasiparticle fraction changes from non-Fermi
liquid, to marginal Fermi liquid to Fermi liquid as a function of doping,
indicating the presence of a quantum critical point separating non-Fermi liquid
from Fermi liquid character. Marginal Fermi liquid character is found at low
temperatures at a very narrow range of doping where the single-particle density
of states is also symmetric. At higher doping the character of the
quasiparticle fraction is seen to cross over from Fermi Liquid to Marginal
Fermi liquid as the temperature increases.

21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
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The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
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The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio