Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Orbital-selective correlations and renormalized electronic structure in
  LiFeAs   Multiorbital models are important to both the correlation physics and
topological behavior of quantum materials. LiFeAs is a prototype iron pnictide
suitable for indepth investigation of this issue. Its electronic structure is
strikingly different from the prediction of the noninteracting description.
Here, a multiorbital Hubbard model for this compound is studied using a $U(1)$
slave spin theory. We demonstrate a new mechanism for a large change in the
size of the Fermi surface, namely, orbital selectivity of the energy-level
renormalization cooperating with its counterpart in the quasiparticle spectral
weight. Using this effect, we show how the dominating features of the
electronic structure in LiFeAs are understood in terms of the local
correlations alone. Our results reveal a remarkable degree of universality out
of the seemingly complex multiorbital building blocks across a broad range of
strongly correlated superconductors.

29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th