Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Accurate optical spectra through time-dependent density functional
  theory based on screening-dependent hybrid functionals   We investigate optical absorption spectra obtained through time-dependent
density functional theory (TD-DFT) based on nonempirical hybrid functionals
that are designed to correctly reproduce the dielectric function. The
comparison with state-of-the-art $GW$ calculations followed by the solution of
the Bethe-Sapeter equation (BSE-$GW$) shows close agreement for both the
transition energies and the main features of the spectra. We confront TD-DFT
with BSE-$GW$ by focusing on the model dielectric function and the local
exchange-correlation kernel. The present TD-DFT approach achieves the accuracy
of BSE-$GW$ at a fraction of the computational cost.

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The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th