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Teleporting quantum Fisher information under Davies-Markovian dynamics

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  • El Anouz, K.
  • El Allati, A.

Abstract

The estimation degree of a teleported state using two different quantum channels by means of quantum Fisher information is discussed. It consists of using two different noisy channels generated from an interaction between an open quantum system and its surrounding environment under Davies-Markovian dynamics. However, when small interacted system–environment parameters and a small number of detuning parameters are taken into account, a robust estimation degree is obtained. Moreover, it is possible to estimate various system–environment parameters related to the energy relaxation time and dephasing time. By controlling these parameters, we conclude that maximally entangled channels and robust estimation degrees by means of quantum Fisher information are achieved when the energy relaxation and dephasing times vanish.

Suggested Citation

  • El Anouz, K. & El Allati, A., 2022. "Teleporting quantum Fisher information under Davies-Markovian dynamics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 596(C).
    • Handle: RePEc:eee:phsmap:v:596:y:2022:i:c:s0378437122001522
    DOI: 10.1016/j.physa.2022.127133
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    References listed on IDEAS

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    1. Obada, A.-S.F. & Abdel-Khalek, S., 2010. "Entanglement evaluation with atomic Fisher information," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 389(4), pages 891-898.
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