https://doi.org/10.1140/epjp/s13360-021-01584-9
Regular Article
Dynamics of quantum effects of a qubit time-dependently interacting with finite entangled coherent cavity fields
1
Department of Mathematics, College of Science and Humanities in Al-Aflaj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
2
Department of Mathematics, Faculty of Science, Assiut University, Assiut, Egypt
3
Department of Mathematics, College of Science, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
4
Department of Mathematics, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
Received:
21
October
2020
Accepted:
18
May
2021
Published online:
4
June
2021
This paper considers a qubit interacting time-dependently with parametric converter two-mode cavity fields. The dynamics of quantum effects, population inversion and quantum coherence, have been investigated when the cavity fields start from entangled coherent states. The qubit starts from a superposition state. We have examined the effects of the difference between the two-mode photon numbers, the qubit time-dependent location, and the initial qubit state on the dynamics of the generated quantum coherence. It is found that the dynamics of the population inversion, the entropies, and the negativity qubit-cavity entanglement can be controlled by the difference between the two-mode photon numbers, the qubit location parameter as well as the initial qubit state.
Key words: Time-dependent interaction / Two-mode converter / Finite entangled states
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
