Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ground state approximation for strongly interacting systems in arbitrary
  dimension   We introduce a variational method for the approximation of ground states of
strongly interacting spin systems in arbitrary geometries and spatial
dimensions. The approach is based on weighted graph states and superpositions
thereof. These states allow for the efficient computation of all local
observables (e.g. energy) and include states with diverging correlation length
and unbounded multi-particle entanglement. As a demonstration we apply our
approach to the Ising model on 1D, 2D and 3D square-lattices. We also present
generalizations to higher spins and continuous-variable systems, which allows
for the investigation of lattice field theories.

37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol