1110.2040 (G. Karpat et al.)

Correlation Dynamics of Qubit-Qutrit Systems in a Classical Dephasing
Environment    [PDF]

G. Karpat, Z. Gedik

We study the time evolution of classical and quantum correlations for hybrid
qubit-qutrit systems in independent and common classical dephasing
environments. Our discussion involves a comparative analysis of the Markovian
dynamics of negativity, quantum discord, geometric measure of quantum discord
and classical correlation. For the case of independent environments, we have
demonstrated the phenomenon of sudden transition between classical and quantum
decoherence for qubit-qutrit states. In the common environment case, we have
shown that dynamics of quantum and geometric discords might be completely
independent of each other for a certain time interval, although they tend to be
eventually in accord.

View original: http://arxiv.org/abs/1110.2040