Quantum correlations and their significance in quantum teleportation under PT-symmetric operation

J. Ramya Parkavi, R. Muthuganesan, V.K. Chandrasekar and M. Lakshmanan

Physica A: Statistical Mechanics and its Applications, 2023, vol. 615, issue C

Abstract: In this article, we exploit the different notions of quantumness measure to understand the properties of the Heisenberg XY model with and without PT-symmetric operation. In the absence of PT-symmetry, we study the significance of different measures, namely entanglement and measurement-induced nonlocality (MIN), in the detection of the quantumness of the Heisenberg XY model. It is observed that the quantum correlations and teleportation fidelity monotonically decreases with respect to temperature. Furthermore, the intervention of PT-symmetric operation enhances the strengths of quantum correlation. In addition, we highlight the role of the system’s parameters and PT-symmetric operation on the teleportation of a quantum state. Our results also emphasize that after the addition of PT-symmetric operation, the considered physical model remains a versatile resource to achieve successful teleportation of the quantum state.

Keywords: Spin system; PT-symmetry; Teleportation; Quantum correlation; Measurements (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:615:y:2023:i:c:s0378437123001413

DOI: 10.1016/j.physa.2023.128586

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