Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bloch-like super-oscillations and unidirectional motion of phase driven
  quantum walkers   We study the dynamics of a quantum walker simultaneously subjected to
time-independent and -dependent phases. Such dynamics emulates a charged
quantum particle in a lattice subjected to a superposition of static and
harmonic electric fields. With proper settings, we investigate the possibility
to induce Bloch-like super-oscillations, resulting from a close tuning of the
frequency of the harmonic phase $\omega$ and that associated with the regular
Bloch-like oscillations $\omega_B$ . By exploring the frequency spectra of the
wavepacket centroid, we are able to distinguish the regimes on which regular
and super-Bloch oscillations are predominant. Furthermore, we show that under
exact resonant conditions $\omega=\omega_B$ unidirectional motion is
established with the wavepacket average velocity being a function of the
quantum walk coin operator parameter, the relative strengths of the static and
harmonic terms, as well as the own phase of the harmonic phase. We show that
the average drift velocity can be well described within a continuous-time
analogous model.

37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas