Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement Entropy in Flat Holography   BMS symmetry, which is the asymptotic symmetry at null infinity of flat
spacetime, is an important input for flat holography. In this paper, we give a
holographic calculation of entanglement entropy and R\'{e}nyi entropy in three
dimensional Einstein gravity and Topologically Massive Gravity. The geometric
picture for the entanglement entropy is the length of a spacelike geodesic
which is connected to the interval at null infinity by two null geodesics. The
spacelike geodesic is the fixed points of replica symmetry, and the null
geodesics are along the modular flow. Our strategy is to first reformulate the
Rindler method for calculating entanglement entropy in a general setup, and
apply it for BMS invariant field theories, and finally extend the calculation
to the bulk.

2
The categories of this paper are: math
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
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The categories of this paper are: cs
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The categories of this paper are: hep-lat
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics