Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: turboTDDFT 2.0 - Hybrid functionals and new algorithms within
  time-dependent density-functional perturbation theory   We present a new release of the turboTDDFT code featuring an implementation
of hybrid functionals, a recently introduced pseudo-Hermitian variant of the
Liouville-Lanczos approach to time-dependent density-functional perturbation
theory, and a newly developed Davidson-like algorithm to compute selected
interior eigenvalues/vectors of the Liouvillian super-operator. Our
implementation is thoroughly validated against benchmark calculations performed
on the cyanin (C$_{21}$O$_{11}$H$_{21}$) molecule using the Gaussian09 and
turboTDDFT 1.0 codes.

5
The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
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The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph