@article{ISI:000454424800012,
 abstract = {Driven many-body quantum systems where some parameter in the Hamiltonian
is varied quasiperiodically in time may exhibit nonequilibrium steady
states that are qualitatively different from their periodically driven
counterparts. Here we consider a prototypical integrable spin system,
the spin-1/2 transverse field Ising model in one dimension, in a pulsed
magnetic field. The time dependence of the field is taken to be
quasiperiodic by choosing the pulses to be of two types that alternate
according to a Fibonacci sequence. We show that a steady state emerges
after an exponentially long time when local properties (or equivalently,
reduced density matrices of subsystems with size much smaller than the
full system) are considered. We use the temporal evolution of certain
coarse-grained quantities in momentum space to understand this
nonequilibrium steady state in more detail and show that unlike the
previously known cases, this steady state is neither described by a
periodic generalized Gibbs ensemble nor by an infinite temperature
ensemble. Finally, we study a toy problem with a single two-level system
driven by a Fibonacci sequence; this problem shows how sensitive the
nature of the final steady state is to the different parameters.},
 article-number = {245144},
 author = {Nandy, Sourav and Sen, Arnab and Sen, Diptiman},
 doi = {10.1103/PhysRevB.98.245144},
 eissn = {2469-9969},
 issn = {2469-9950},
 journal = {PHYSICAL REVIEW B},
 month = {DEC 26},
 number = {24},
 orcid-numbers = {Sen, Arnab/0000-0001-5342-8332},
 times-cited = {6},
 title = {Steady states of a quasiperiodically driven integrable system},
 unique-id = {ISI:000454424800012},
 volume = {98},
 year = {2018}
}