Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Density functional theory with adaptive pair density   We propose a density functional to find the ground state energy and density
of interacting particles, where both the density and the pair density can
adjust in the presence of an inhomogeneous potential. As a proof of principle
we formulate an a priori exact functional for the inhomogeneous Hubbard model.
The functional has the same form as the Gutzwiller approximation but with an
unknown kinetic energy reduction factor. An approximation to the functional
based on the exact solution of the uniform problem leads to a substantial
improvement over the local density approximation.

3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn