Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffusion in a system of a few distinguishable fermions in a
  one-dimensional double-well potential   Dynamical properties of a few ultra-cold fermions confined in a double-well
potential is studied. We show that the dynamics, which is governed by
single-particle tunnelings for vanishing interactions, is completely different
for strong interactions. Depending on the details of the configuration, for
sufficiently strong interactions (repulsions or attractions) the particle flow
through the barrier can be accelerated or slowed down. This effect cannot be
explained with the single-particle picture. It is clarified with direct
inspection to the spectrum of the few-body Hamiltonian.

11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org