The phase of the coupling effect on entanglement decay in the nonlinear coupler system
A. Kowalewska-Kudłaszyk, W. Leoński · Physica Scripta · 2010
We consider the influence of the phase of internal coupling within a nonlinear Kerr-like coupler on entanglement decay. Assuming that the coupler interacts with an external reservoir, we show that by changing this phase we can obtain qualitatively various types of entanglement decay. In consequence, we are able to control the occurrence of sudden death and sudden birth phenomena.