Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards efficient and accurate \emph{ab initio} solutions to periodic
  systems via transcorrelation and coupled cluster theory   We propose a streamlined combination scheme of the transcorrelation (TC) and
coupled cluster (CC) theory, which not only increases the convergence rate with
respect to the basis set, but also extends the applicability of the lowest
order CC approximations to strongly correlated regimes in the three dimensional
uniform electron gas (3D UEG). With the correct physical insights built into
the correlator used in TC, highly accurate ground state energies with errors
$\leq 0.001 $ a.u./electron relative to the state-of-the-art quantum Monte
Carlo results can be obtained across a wide range of densities. The greatly
improved efficiency and accuracy of our methods hold great promise for strongly
correlated solids where many other methods fail.

23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph