Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quenching small quantum gases: Genesis of the orthogonality catastrophe   We study the dynamics of two strongly interacting bosons with an additional
impurity atom trapped in a harmonic potential. Using exact numerical
diagonalization we are able to fully explore the dynamical evolution when the
interaction between the two distinct species is suddenly switched on
(quenched). We examine the behavior of the densities, the entanglement, the
Loschmidt echo and the spectral function for a large range of inter-species
interactions and find that even in such small systems evidence of Anderson's
orthogonality catastrophe can be witnessed.

11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an