Coherent and Ultrafast Manipulation of Entanglement Sudden Death and Revival

Within the framework of semi-classical theory of light and matter, we investigate the entanglement dynamics of the bipartite system consisting of two identical and interacting two-level atoms in QED by use of concurrence, which are driven by coherent double ultra-short laser pulses divided by diverse phase differences. Results show that under different detuning, the phase difference can exert significant influence on the entanglement evolution, such as delaying or accelerating entanglement sudden death (ESB) and revival (ESR). Furthermore, with the increment of detuning, ESD and ESR disappear irrespective of various phase differences.