@article{ISI:000355719700008,
 abstract = {We use Floquet theory to study the maximum value of the stroboscopic
group velocity in a one-dimensional tight-binding model subjected to an
on-site staggered potential varying sinusoidally in time. The results
obtained by numerically diagonalizing the Floquet operator are analyzed
using a variety of analytical schemes. In the low-frequency limit we use
adiabatic theory, while in the high-frequency limit the Magnus expansion
of the Floquet Hamiltonian turns out to be appropriate. When the
magnitude of the staggered potential is much greater or much less than
the hopping, we use degenerate Floquet perturbation theory; we find that
dynamical localization occurs in the former case when the maximum group
velocity vanishes. Finally, starting from an ``engineered″ initial
state where the particles (taken to be hard-core bosons) are localized
in one part of the chain, we demonstrate that the existence of a maximum
stroboscopic group velocity manifests in a light-cone-like spreading of
the particles in real space.},
 article-number = {063607},
 author = {Nag, Tanay and Sen, Diptiman and Dutta, Amit},
 doi = {10.1103/PhysRevA.91.063607},
 eissn = {1094-1622},
 issn = {1050-2947},
 journal = {PHYSICAL REVIEW A},
 month = {JUN 8},
 number = {6},
 times-cited = {9},
 title = {Maximum group velocity in a one-dimensional model with a sinusoidally
varying staggered potential},
 unique-id = {ISI:000355719700008},
 volume = {91},
 year = {2015}
}