Quantum obesity and steering ellipsoids for fermionic fields in Garfinkle-Horowitz-Strominger dilation spacetime

• URL: http://arxiv.org/abs/2408.06869v2
• Date: Wed, 14 Aug 2024 01:50:17 GMT
• Title: Quantum obesity and steering ellipsoids for fermionic fields in Garfinkle-Horowitz-Strominger dilation spacetime
• Authors: Samira Elghaayda, M. Y. Abd-Rabbou, Mostafa Mansour,
• Abstract summary: This paper investigates quantum obesity (QO), quantum discord (QD), and the quantum steering ellipsoid (QSE) for bipartite Gisin states subjected to Garfinkle-Horowitz-Strominger dilation of spacetime on the second qubit.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper investigates quantum obesity (QO), quantum discord (QD), and the quantum steering ellipsoid (QSE) for bipartite Gisin states subjected to Garfinkle-Horowitz-Strominger (GHS) dilation of spacetime on the second qubit. These three quantifiers are introduced to characterize quantum correlations beyond entanglement and can also function as entanglement witnesses. Our results demonstrate a monotonic decrease in the physical accessibility of both QD and QO as the dilation parameter increases within the region-I of the second qubit. Conversely, in the anti-particle region, the accessibility of QD and QO stabilizes at finite values of the dilation parameter owing to the influence of the Pauli exclusion principle and Fermi-Dirac statistics, subsequently increasing gradually. Notably, the QSE in the region-I expands as the Dirac field frequency rises and the dilation parameter diminishes, while the opposite trend is observed in the anti-particle region.

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