Reduction of entanglement degradation and teleportation improvement in Einstein-Gauss-Bonnet gravity

Abstract

Bipartite entanglement for states of a non-interacting bosonic or fermionic field in the spacetime of a spherically symmetric black hole of Einstein-Gauss-Bonnet gravity, is investigated. Although the initial state is chosen to be maximally entangled as the Bell states, the Hawking-Unruh effect causes the state to be mixed and the entanglement degrades, but with different asymptotic behaviors for the fermionic and bosonic fields. The Gauss-Bonnet term with positive $\alpha$ can play an anti-gravitation role and so this causes to decrease the Hawking-Unruh effect and consequently reduces the entanglement degradation. On the other hand, the suggested higher dimensions for the spacetime, lead to more entanglement degradation by increasing the dimension. There is a dramatic difference between the behaviors of the entanglement in terms of the radius of the horizon for a five-dimensional black hole and that for higher dimensional black holes.

16 pages, 15 figures

References in corpus (11)

• Entanglement of Dirac fields in non-inertial frames
• Quantum Entanglement of Moving Bodies
• The Unruh effect in quantum information beyond the single-mode approximation
• A Note on Thermodynamics of Black Holes in Lovelock Gravity
• Unveiling quantum entanglement degradation near a Schwarzschild black hole
• Entanglement in an expanding spacetime
• Hawking radiation, Entanglement and Teleportation in background of an asymptotically flat static black hole
• Entanglement of Dirac fields in an expanding spacetime
• Quantum Entanglement of Electromagnetic Fields in Non-inertial Reference Frames
• Quantum Entanglement and Teleportation in Higher Dimensional Black Hole Spacetimes
• Hawking-Unruh effect and the entanglement of two-mode squeezed states in Riemannian spacetime

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• Genuine four-partite Bell nonlocality in the curved spacetime
• Quantumness near the Schwarzschild black hole based on W-state
• Quantum steering for different types of Bell-like states in gravitational background
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• Entropic uncertainty and coherence in Einstein-Gauss-Bonnet gravity
• Tripartite quantum steering in Schwarzschild spacetime
• Do maximally entangled states always have an advantage over non-maximally entangled states in Schwarzschild black hole?