@article{ProsenIlievski2011,
  author    = {Prosen, Tomaz and Ilievski, Enej},
  title     = {Nonequilibrium phase transition in a periodically driven XY spin chain},
  series = {Physical review letters},
  volume    = {107},
  journal   = {Physical review letters},
  number    = {6},
  publisher = {American Physical Society},
  address   = {College Park},
  issn      = {0031-9007},
  doi       = {10.1103/PhysRevLett.107.060403},
  pages     = {4},
  year      = {2011},
  abstract  = {We present a general formulation of Floquet states of periodically time-dependent open Markovian quasifree fermionic many-body systems in terms of a discrete Lyapunov equation. Illustrating the technique, we analyze periodically kicked XY spin-1/2 chain which is coupled to a pair of Lindblad reservoirs at its ends. A complex phase diagram is reported with reentrant phases of long range and exponentially decaying spin-spin correlations as some of the system's parameters are varied. The structure of phase diagram is reproduced in terms of counting nontrivial stationary points of Floquet quasiparticle dispersion relation.},
  language  = {en}
}