Maximum quantum entanglement and linearity in the second-order terms of the Lamb–Dicke parameter
Rasim Dermez, Soner Özen · Physica Scripta · 2012
In this work, the quantum entanglement and quantum linearity in a trapped ion–phonon system are theoretically explained in terms of the second-order terms of the Lamb–Dicke parameter, η . For the trapped ion–phonon system, the optimum times are 2 and 10 and the optimum probability amplitudes of ions are 0.4 and 0.58, respectively. With the optimum times and amplitudes, it is shown that as η grows, the quality of the entanglement in the trapped ion–phonon system increases. In particular, we have demonstrated the quantum linearity due to second-order terms of η .