The dynamics of two weakly interacting spins coupled to separate bosonic baths is studied. An analytical solution in the Born approximation for arbitrary spectral density functions of the bosonic environments is found. It is shown that in the non-Markovian cases concurrence'lives' longer or reaches greater values.
13 Nov 2009
Volume: 42 Issue: 48 Pages: 485301
Journal of Physics A: Mathematical and Theoretical