Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deconfined quantum criticality driven by Dirac fermions in SU(2)
  antiferromagnets   Quantum electrodynamics in 2+1 dimensions is an effective gauge theory for
the so called algebraic quantum liquids. A new type of such a liquid, the
algebraic charge liquid, has been proposed recently in the context of
deconfined quantum critical points [R. K. Kaul {\it et al.}, Nature Physics
{\bf 4}, 28 (2008)]. In this context, we show by using the renormalization
group in $d=4-\epsilon$ spacetime dimensions, that a deconfined quantum
critical point occurs in a SU(2) system provided the number of Dirac fermion
species $N_f\geq 4$. The calculations are done in a representation where the
Dirac fermions are given by four-component spinors. The critical exponents are
calculated for several values of $N_f$. In particular, for $N_f=4$ and
$\epsilon=1$ ($d=2+1$) the anomalous dimension of the N\'eel field is given by
$\eta_N=1/3$, with a correlation length exponent $\nu=1/2$. These values change
considerably for $N_f>4$. For instance, for $N_f=6$ we find $\eta_N\approx
0.75191$ and $\nu\approx 0.66009$. We also investigate the effect of chiral
symmetry breaking and analyze the scaling behavior of the chiral holon
susceptibility, $G_\chi(x)\equiv<\bar \psi(x)\psi(x)\bar \psi(0)\psi(0)>$.

17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio