Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Confinement: a real-time visualization   Due to the mechanism of confinement, as known from quantum chromodynamics, it
is difficult to observe individual particles carrying fractional quantum number
(e.g. quark with fractional electric charge). A condensed matter example of
fractionalized particles is spinons in quasi-one-dimensional spin systems,
which are domain walls in the background of Neel configurations carrying
spin-1/2. Using the time-evolving block decimation algorithm, we visualize the
nontrivial domain wall dynamics induced by the confine mechanism in a two-leg
spin-1/2 ladder. It can be illustrated by a simple single-particle picture of
Bloch oscillation, not only qualitatively but also quantitatively. We propose
the experimental realization and the real time detection of the domain wall
dynamics in the ultra-cold boson systems of $^{87}$Rb.

26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex