Phase-difference-dependent laser-induced quantum entanglement in a pair of cubits
Alexander Alexandrovich Biryukov, Vladimir Leonardovich Derbov, Марк Александрович Шлеенков · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2015
We study the evolution of quantum entanglement in the model of two identical qubits interacting with a singlemode laser field. The density matrix and Peres-Horodecki parameter are calculated within the frameworks of path-integral formalism. The quantum entanglement measure is shown to be strongly dependent upon the phase difference between the laser radiation acting on each cubit. This observation may offer the possibility of quantum entanglement stationary control by varying the distance between the qubits.