Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Expulsion from structurally balanced paradise   We perform simulations of structural balance evolution on a triangular
lattice using the heat-bath algorithm. In contrast to similar approaches---but
applied to analysis of complete graphs---the triangular lattice topology
successfully prevents the occurrence of even partial Heider balance. Starting
with the state of Heider's paradise, it is just a matter of time when the
evolution of the system leads to an unbalanced and disordered state. The time
of the system relaxation does not depend on the system size. The lack of any
signs of a balanced state was not observed in earlier investigated systems
dealing with the structural balance.

37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc