Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement Entropy of Topological Orders with Boundaries   In this paper we explore how non trivial boundary conditions could influence
the entanglement entropy in a topological order in 2+1 dimensions. Specifically
we consider the special class of topological orders describable by the quantum
double. We will find very interesting dependence of the entanglement entropy on
the boundary conditions particularly when the system is non-Abelian. Along the
way, we demonstrate a streamlined procedure to compute the entanglement
entropy, which is particularly efficient when dealing with systems with
boundaries. We also show how this method efficiently reproduces all the known
results in the presence of anyonic excitations.

21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat