Position-dependent dynamics of two qubits in a leakage cavity
Jun Jing, Zhiguo Lü, Hongru Ma, Hang Zheng · Journal of Physics B Atomic Molecular and Optical Physics · 2008
The position-dependent entanglement dynamics of two qubits embedded in a leakage cavity is investigated. The two qubits are initialled in Bell states and the cavity mode is taken as a standing wave. It is found that (i) the dynamics of the Bell states can be divided into two groups according to one-photon entangled states and two-photon entangled states; (ii) the entanglement life of the one-photon entangled states can be kept as long as possible if we put the two qubits at certain positions; (iii) at larger detuning, the entanglement dynamics manifests more robustly.