Journal of Quantum Information Science

Volume 9, Issue 1 (March 2019)

ISSN Print: 2162-5751   ISSN Online: 2162-576X

Google-based Impact Factor: 0.95  Citations  

Stark and Kerr Effects on the Dynamics of Moving N-Level Atomic System

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DOI: 10.4236/jqis.2019.91003    829 Downloads   1,849 Views  Citations

ABSTRACT

We have investigated numerically the dynamics of quantum Fisher information (QFI) and quantum entanglement (QE) for N-level atomic system interacting with a coherent field in the presence of Kerr (linear and non-linear medium) and Stark effects. It is observed that the Stark and Kerr effects play a prominent role during the time evolution of the quantum system. The evolving quantum Fisher information (QFI) is noted as time grows under the non-linear Kerr medium contrary to the QE for higher dimensional systems. The effect of non-linear Kerr medium is greater on the QE as we increase the value of Kerr parameter. However, QFI and QE maintain their periodic nature under atomic motion. On the other hand, linear Kerr medium has no prominent effects on the dynamics of N-level atomic system. Furthermore, it has been observed that QFI and QE decay soon under the influence of Stark effect. In short, the N-level atomic system is found prone to the change of the Kerr medium and Stark effect for higher dimensional systems.

Share and Cite:

Anwar, S. , Ramzan, M. , Usman, M. and Khan, M. (2019) Stark and Kerr Effects on the Dynamics of Moving N-Level Atomic System. Journal of Quantum Information Science, 9, 22-40. doi: 10.4236/jqis.2019.91003.

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