Decoherence-Assisted Transport in a Dimer System

作者:Sinayskiy I*; Marais A; Petruccione F; Ekert A
来源:Physical Review Letters, 2012, 108(2): 020602.
DOI:10.1103/PhysRevLett.108.020602

摘要

The dynamics of a dimer coupled to two different environments, each in a spin star configuration under the influence of decoherence, is studied. The exact analytical expression for the transition probability in the dimer system is obtained for different situations, i.e., independent and correlated environments. In all cases considered, it is shown that there exist well-defined ranges of parameters for which decoherent interaction with the environment assists energy transfer in the dimer system. In particular, we find that correlated environments can assist energy transfer more efficiently than separate baths.

  • 出版日期2012-1-11