Memory-keeping effects and forgetfulness in the dynamics of a qubit coupled to a spin chain

T. J. G. Apollaro, C. Di Franco, F. Plastina +1

Using recently proposed measures for non-Markovianity [H. P. Breuer, E. M. Laine, and J. Piilo, Phys. Rev. Lett. {\bf 103}, 210401 (2009)], we study the dynamics of a qubit coupled…