Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Systematic study of finite-size effects in quantum Monte Carlo
  calculations of real metallic systems   We present a systematic and comprehensive study of finite-size effects in
diffusion quantum Monte Carlo calculations of metals. Several previously
introduced schemes for correcting finite-size errors are compared for accuracy
and efficiency and practical improvements are introduced. In particular, we
test a simple but efficient method of finite-size correction based on an
accurate combination of twist averaging and density functional theory. Our
diffusion quantum Monte Carlo results for lithium and aluminum, as examples of
metallic systems, demonstrate excellent agreement between all of the approaches
considered.

8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin