Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum discrete breathers   We review recent studies about quantum discrete breathers. We describe their
basic properties in comparison with their classical counterparts, and the ways
they may be addressed theoretically in different quantum lattice models
including either bosonic or fermionic excitations. We also review recent
experimental work in the field.

13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat