Dynamics of quantum steerability for two atoms in coupled cavities

ABSTRACT

We study the dynamics of quantum steerability between two non-interacting atoms, each of which is trapped inside one of two coupled cavities. Compared with entanglement, quantum steerability manifests sudden birth and sudden death phenomenon during the time evolution. We find that the cavity decay plays a destruction role for both steerability and entanglement. It is also shown that the survival time as well as the maximal value of steerability are sensitive to the asymmetry of the cavities. Moreover, it is found the sudden death of steerability can be controlled by the hopping rate of the coupled cavities.

KEYWORDS:

• Quantum steering
• quantum correlations
• coupled cavities

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant nos. 11247308, 11364006 and 11504106], the Natural Science and Technology Foundation of Guizhou Province [grant nos.[2017]7343，[2013]2231] and also by the Fundamental Research Funds for the Central Universities.