Abstract
We analyze the effect of the position-dependent excitation phase on the properties of entanglement between two qubits formed in atomic systems. We show that the excitation phase induces a vacuum-mediated quantum interference in the system that affects the dynamical behavior of entanglement between the qubits. It is also found that the quantum interference leads to a coherent population transfer between the symmetric and antisymmetric states that can considerably modify the dynamics of two-qubit entanglement and can even prevent finite-time disentanglement (sudden death) under certain conditions.
1 More- Received 20 October 2010
- Corrected 3 May 2011
DOI:https://doi.org/10.1103/PhysRevA.83.042301
©2011 American Physical Society
Corrections
3 May 2011