Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Can we implement the holographic principle in asymptotically flat
  spacetimes?   We discuss some recent results in the quest to implement the holographic
principle in asymptotically flat spacetimes. In particular we introduce the key
ingredients of the candidate dual theory which lives at null infinity and it is
invariant under the asymptotic symmetry group of this class of spacetimes.

10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg