Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical local connector approximation for electron addition and
  removal spectra   Realistic calculations of electron addition and removal spectra rely most
often on Green's functions and complex, non-local self-energies. We introduce a
shortcut to obtain the spectral function directly from a local and
frequency-dependent, yet real, potential. We calculate this potential in the
homogeneous electron gas (HEG), and we design a connector which prescribes the
use of the HEG results to calculate spectral functions of real materials.
Benchmark results for several solids demonstrate the potential of our approach.

29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ